Where to Buy Catmint Plants in Janesville Wi

Looking for catmint plants in Janesville, Wisconsin? This guide covers the top local nurseries, garden centers, and retail stores where you can find healthy catmint varieties like Walker’s Low and Cat’s Meow. Learn the best planting times for zone 5b, how to pick vigorous plants, and tips for growing catmint successfully in your southern Wisconsin garden.

If you have ever walked through a Wisconsin garden in July and noticed those lovely mounds of lavender-blue flowers buzzing with bees and butterflies, chances are you were looking at catmint. This tough perennial has become a staple in Janesville gardens for good reason. It handles our hot summers and cold winters like a champ. It blooms for months with almost no care. And the pollinators absolutely love it.

But here is the thing. Finding quality catmint plants in Janesville can feel overwhelming if you do not know where to look. Some garden centers carry three varieties. Others only have one. Big box stores get shipments at different times. And the selection changes every year. I have spent the last few growing seasons tracking down the best sources for catmint in the Janesville area. This guide shares everything I have learned about where to buy catmint plants in Janesville WI so you can skip the guesswork and get straight to planting.

Key Takeaways

• Local nurseries offer the best selection: Janesville-area garden centers carry regionally adapted catmint varieties that thrive in Wisconsin’s climate.
• Shop in spring for the widest variety: Late April through early June provides the best selection of catmint cultivars at local stores.
• Check plant health before buying: Look for compact growth, green foliage without yellowing, and white healthy roots when selecting catmint plants.
• Big box stores offer convenience and price: Home Depot, Lowe’s, and Menards carry catmint seasonally at competitive prices.
• Online retailers ship to Janesville: Several reputable online nurseries deliver healthy catmint plants directly to your door in spring.
• Plant after the last frost date: Wait until mid-May in Janesville to plant catmint outdoors for the best survival rates.
• Choose the right variety for your space: Compact varieties like ‘Junior Walker’ work well in small gardens, while ‘Walker’s Low’ creates dramatic mass plantings.

Quick Answers to Common Questions

What is the best time to buy catmint plants in Janesville?

The best time to buy catmint in Janesville is mid-April through early June when local nurseries have their full selection of hardened-off plants ready for planting after the last frost date around May 10.

Which catmint variety is best for small Janesville gardens?

‘Junior Walker’ and ‘Cat’s Pajamas’ are the best compact varieties for small Janesville gardens, staying under eighteen inches tall while blooming all summer.

Can I buy catmint at the Janesville Farmers Market?

Yes, several perennial vendors at the Janesville Farmers Market on South River Street sell catmint plants from May through October, often at lower prices than retail nurseries.

Do big box stores in Janesville guarantee their catmint plants?

Yes, Home Depot, Lowe’s, and Menards all offer a one-year guarantee on perennials including catmint. Keep your receipt and plant tag for any claims.

Is fall a good time to plant catmint in Janesville?

Fall is an excellent time to plant catmint in Janesville. Plant September 1 through October 1 to give roots six to eight weeks to establish before the ground freezes.

Why Catmint Thrives in Janesville Gardens

Understanding Our Growing Zone

Janesville sits in USDA hardiness zone 5b. That means our average annual minimum temperature drops to between negative fifteen and negative ten degrees Fahrenheit. Catmint, botanically known as Nepeta, is hardy from zones three through eight. This makes it perfectly suited for our climate. It comes back reliably year after year without any special winter protection.

Our growing season typically runs from early May through early October. That gives catmint plenty of time to establish roots, bloom heavily, and store energy for winter. The plant actually prefers our cooler spring temperatures for root development before the summer heat kicks in.

Soil Conditions in Rock County

Much of the Janesville area features well-draining silt loam soils. Catmint loves this. It hates wet feet. The plant evolved in the dry, rocky soils of Europe and Asia. Our local soil conditions mimic its native habitat pretty well. If you have heavy clay in your yard, just amend it with some compost and coarse sand before planting. Your catmint will thank you with vigorous growth and abundant flowers.

Deer and Rabbit Resistance

Anyone who gardens in Janesville knows the struggle. Deer and rabbits treat our yards like all-you-can-eat buffets. Here is where catmint really shines. The aromatic foliage contains compounds that mammals find distasteful. I have watched deer walk right past my catmint border to munch on hostas instead. This natural resistance makes catmint one of the most reliable perennials for unfenced yards in Rock County.

Local Nurseries and Garden Centers in Janesville

K&W Greenery

Located on North Parker Drive, K&W Greenery is a Janesville institution. This family-owned nursery has been serving southern Wisconsin since the 1970s. They grow many of their own perennials on-site, which means the catmint you buy there is already acclimated to our local conditions.

In a typical spring, K&W carries at least four catmint varieties. You will usually find ‘Walker’s Low,’ the classic tall variety that reaches twenty-four to thirty inches. They also stock ‘Cat’s Meow,’ a more compact selection with a tidy mounding habit. ‘Junior Walker’ is a dwarf version perfect for the front of borders. And they often have ‘Blue Wonder,’ which offers intense violet-blue flowers on eighteen-inch plants.

The staff at K&W knows their plants. Ask for the perennial manager. They can tell you exactly which varieties arrived on which truck and how they have been performing in their display gardens. They also offer a one-year guarantee on hardy perennials. Keep your receipt and the plant tag.

Rotary Botanical Gardens Plant Sales

This is a hidden gem that many gardeners overlook. The Rotary Botanical Gardens holds a massive plant sale every Mother’s Day weekend. Their perennial section includes divisions from their own display gardens. The catmint varieties offered here have proven themselves in the gardens’ trial beds.

You are buying plants that have already survived multiple Wisconsin winters in the exact same microclimate as your yard. The prices are reasonable. And all proceeds support the gardens. Arrive early. The best catmint selections sell out within the first two hours. Bring a wagon or cart. The sale covers several acres.

Driftless Gardens

Located just outside Janesville in the town of Fulton, Driftless Gardens specializes in native and adapted perennials. Their catmint selection focuses on varieties that support pollinators. They typically carry ‘Walker’s Low’ and ‘Cat’s Pajamas,’ a newer compact introduction with a long bloom season.

What sets Driftless apart is their ecological approach. The owner can advise you on companion planting catmint with native prairie species like coneflower, black-eyed Susan, and butterfly weed. They also offer design consultations if you are planning a larger pollinator garden.

Janesville Farmers Market Plant Vendors

From May through October, the Janesville Farmers Market on South River Street hosts several perennial growers. These are often smaller operations that bring a curated selection each week. The advantage here is freshness. The plants were likely dug or potted up just days before the market.

Talk to the vendors. Ask where they grow their catmint. Ask about their overwintering success rates. Many of these growers are hobbyists turned professionals who are incredibly knowledgeable. Prices are often lower than retail nurseries because you are buying direct. Cash is preferred, though most now accept cards.

Big Box Stores with Garden Centers

Home Depot Janesville

The Home Depot on Deerfield Drive receives perennial shipments starting in early April. Their catmint selection varies by year but usually includes ‘Walker’s Low’ in one-gallon pots. Sometimes they carry the Proven Winners line, which includes ‘Cat’s Meow’ and ‘Cat’s Pajamas.’ These are branded varieties with consistent performance.

The trade-off at big box stores is plant care. The staff rotates seasonally. Watering can be inconsistent. Shop early in the week right after a delivery for the best plants. Tuesday and Wednesday mornings are ideal. Inspect the root ball before buying. Gently tip the pot and check for white, firm roots. Avoid plants with roots circling the bottom or growing out the drainage holes excessively.

Home Depot offers a one-year plant guarantee. Save your receipt and take a photo of the plant tag. If your catmint does not survive the winter, bring the dead plant and receipt for a refund or exchange.

Lowe’s Janesville

Lowe’s on Milton Avenue follows a similar seasonal pattern. Their garden center typically stocks catmint from late March through June. They often carry the Bonnie Plants brand in biodegradable pots. These are younger plants, usually in four-inch or quart containers. They cost less but take longer to reach mature size.

Lowe’s also carries the Proven Winners line in larger containers. Their perennial buyer for the Midwest region selects varieties tested in Chicago and Minneapolis trial gardens. Those conditions are similar enough to Janesville that the selections usually perform well here.

Check the clearance section in July. Sometimes you can find catmint marked down fifty percent or more. These plants may look rough after sitting in a parking lot all summer. But catmint is tough. Cut them back hard, plant them, water well, and they often rebound beautifully for fall bloom.

Menards Janesville

Menards on US-51 has expanded their garden center significantly in recent years. They now carry a surprising variety of perennials including multiple catmint cultivars. Their prices are often the lowest in town. The trade-off is selection consistency. What they have one week may be gone the next.

Menards sources from several Midwestern wholesale growers. The plant tags list the grower location. Look for tags indicating Wisconsin, Illinois, or Minnesota origin. Those plants are already hardened off for our climate. Avoid plants shipped from southern states in early spring. They may not be ready for our cool nights.

Walmart Garden Center

The Walmart Supercenter on Deerfield Drive has a seasonal garden center that operates roughly April through July. Their perennial selection is the most limited of the big box stores. Usually just ‘Walker’s Low’ in one-gallon pots. But the price is hard to beat. If you need a lot of plants for a mass planting, this can be the most economical option.

Plant quality varies wildly. Some years the plants look great. Other years they are clearly stressed. Shop as soon as the perennial tables appear in spring. Do not wait until Memorial Day weekend. The best plants sell first, and the remainder decline quickly in the parking lot heat.

Online Options with Local Pickup or Delivery

Midwestern Online Nurseries

Several reputable online nurseries are based in the Upper Midwest. This matters because their plants are grown in similar conditions to what they will face in your Janesville garden. They understand zone 5b.

Prairie Nursery in Westfield, Wisconsin specializes in native and adapted plants. They offer ‘Walker’s Low’ catmint as part of their pollinator garden collections. Their plants ship as healthy plugs or potted plants in spring and fall. Shipping to Janesville takes one to two days. The plants spend minimal time in transit.

Prairie Moon Nursery in Winona, Minnesota is another excellent source. They focus on native species but carry a few adapted non-natives like catmint that provide exceptional pollinator value. Their bare-root plants are economical for large projects. Order in winter for spring shipping.

National Online Retailers with Good Track Records

Proven Winners Direct ships their branded catmint varieties nationwide. Their ‘Cat’s Meow’ and ‘Cat’s Pajamas’ are bred for compact habit and reblooming. The plants arrive in proprietary packaging designed to survive shipping. They offer a satisfaction guarantee.

White Flower Farm in Connecticut has been shipping perennials since the 1940s. Their catmint selection includes some harder-to-find varieties like ‘Six Hills Giant’ and ‘Dropmore.’ Their plants are larger and more expensive but very high quality. They ship at the proper planting time for your zone.

Bluestone Perennials in Ohio grows and ships a wide range of catmint varieties. Their plants are grown in deep plugs that establish quickly. They have a helpful website filter for zone, bloom time, height, and color. Shipping to Janesville is fast from Ohio.

What to Look for When Ordering Online

Always check the shipping schedule. Reputable nurseries ship based on your hardiness zone. They should not send plants to Janesville before mid-April at the earliest. If a website lets you choose a ship date, select the week after your average last frost date. For Janesville, that is around May 15.

Read the plant size description carefully. “Quart pot,” “one-gallon,” “bare root,” and “plug” mean very different things. A plug is a small starter plant. A one-gallon plant will give you immediate impact. Bare root plants need to be planted immediately upon arrival.

Check the guarantee policy. Most reputable online nurseries offer a one-year guarantee. Some offer longer. Understand what documentation you need. Usually a photo of the plant and your order confirmation suffice.

When to Buy and Plant Catmint in Wisconsin

Spring Buying Timeline

The catmint buying season in Janesville follows a predictable pattern. Here is what to expect month by month.

Late March to early April: Big box stores receive their first perennial shipments. Selection is limited. Plants are small. Prices are at their highest for the season. Only buy if you have a protected spot to hold plants until planting time.

Mid-April to early May: Local nurseries like K&W Greenery and Driftless Gardens bring out their main perennial crops. This is when variety peaks. You will find the best selection of cultivars. Plants are well-rooted and hardened off. This is the sweet spot for buying.

Mother’s Day weekend: The Rotary Botanical Gardens plant sale happens. This is a one-weekend opportunity for unique varieties. Arrive at opening for the best catmint selection.

Late May through June: Selection declines as inventory sells. But prices may drop. Nurseries clear space for annuals. You can find deals on larger specimens. These plants will still establish well if planted promptly and watered consistently.

July and August: Limited selection. Mostly leftovers. Not ideal for planting in summer heat. If you must plant now, provide shade cloth and daily watering for the first two weeks.

September to early October: Fall planting window opens. Some nurseries bring in fresh stock. Catmint planted in fall establishes roots before winter and explodes in spring. This is my preferred planting time. The plants focus energy on roots rather than flowers.

Janesville Frost Dates and Planting Windows

Our average last frost date is May 10. The average first frost is October 5. That gives us roughly 148 frost-free days. Catmint can handle a light frost once established. But new transplants are vulnerable.

Spring planting window: May 15 through June 15 is ideal. The soil has warmed. Frost risk is minimal. Rainfall is usually reliable. Plants have the full growing season to establish.

Fall planting window: September 1 through October 1. Soil is still warm from summer. Air temperatures are cooler. Rainfall increases. Plants get six to eight weeks of root growth before the ground freezes.

Avoid planting in November. The ground may not freeze solid until December, but the plants will not have enough time to anchor before freeze-thaw cycles heave them out of the soil.

Holding Plants Before Planting

Sometimes you find the perfect catmint but the weather or your schedule is not ready. Here is how to keep plants healthy for up to two weeks.

Keep pots in a sheltered spot with morning sun and afternoon shade. The north side of a garage or under a deck works well. Water daily. Small pots dry out fast. Check moisture by sticking your finger an inch into the soil.

If a hard frost is forecast, move plants into an unheated garage or shed overnight. Do not bring them into a heated house. The temperature shock will damage them. A cold frame is ideal if you have one.

Do not fertilize while holding. The plants are not actively growing in their pots. Fertilizer will build up salts and burn roots. Wait until after planting and new growth appears.

Choosing Healthy Catmint Plants

Reading the Plant Tag

Every catmint plant should have a tag with essential information. Here is what to look for and what it means for your garden.

Botanical name: Should read Nepeta x faassenii for most garden catmints. Nepeta racemosa is another common species. Nepeta cataria is true catnip, which is different. It spreads aggressively and attracts cats. Garden catmint does not.

Cultivar name: This is in single quotes. ‘Walker’s Low,’ ‘Cat’s Meow,’ ‘Junior Walker,’ ‘Blue Wonder,’ ‘Six Hills Giant,’ ‘Dropmore.’ Each has distinct height, spread, flower color, and bloom time. Know which one you want before shopping.

Mature size: Listed as height by width. ‘Walker’s Low’ reaches 24-30 inches tall and 36 inches wide. ‘Junior Walker’ stays 15-18 inches tall and 24 inches wide. Plan your spacing accordingly. Crowding leads to flopping and disease.

Hardiness zone: Should say zone 3, 4, or 5. If it says zone 6 or higher, it is not reliably hardy in Janesville without protection. Some retailers ship the same tags nationwide. Verify the zone rating matches our zone 5b.

Sun exposure: Catmint needs full sun. That means at least six hours of direct sun. The tag should say “full sun.” If it says “part shade tolerant,” the plant will survive but flower less and flop more.

Inspecting the Plant

Do not just grab the first pot. Take thirty seconds to inspect. It saves disappointment later.

Foliage color: Should be gray-green to medium green depending on variety. Yellowing lower leaves indicate nitrogen deficiency or overwatering. Brown crispy edges mean underwatering or fertilizer burn. Spots or powdery coating suggest fungal issues.

Growth habit: Look for a full, mounded shape with stems emerging from the center. Avoid plants with one or two tall stems and bare centers. That indicates the plant was crowded or shaded in the nursery.

Flower buds: In spring, you want to see tight buds, not open flowers. Plants in full bloom in the pot have been forced. They will finish blooming soon after planting and need a hard cutback to rebloom. Buds mean the show happens in your garden.

Root system: This is the most important check. Gently squeeze the pot sides. Tip it upside down supporting the stem base. Slide the pot off. Healthy roots are white or light tan, firm, and fill the pot without being a solid mat. Circling roots at the bottom mean the plant is root-bound. Tease them apart at planting. Dark, mushy, or smelly roots indicate rot. Put that plant back.

Weeds in the pot: A few weed seedlings are normal. A pot full of weeds means poor nursery hygiene. Those weeds will come home with you and spread in your garden.

Size Matters: Quart vs. Gallon vs. Plug

Catmint grows fast. A quart-sized plant in May will catch up to a gallon-sized plant by July. But there are trade-offs.

Plugs and 4-inch pots: Cheapest option. Best for mass plantings where you need twenty or more plants. Require more attention the first month. Water every other day for two weeks. Mulch heavily.

Quart pots: Good middle ground. Established root system. Quick to settle in. Usually the best value for home gardeners buying five to ten plants.

One-gallon and larger: Instant impact. Good for focal points or filling a gap in an existing border. Most expensive. Heavier to transport and plant. Root systems can be pot-bound. Check carefully.

Catmint Varieties for Janesville Gardens

Walker’s Low – The Classic Choice

Despite the name, ‘Walker’s Low’ is not low. It reaches two and a half feet tall and three feet wide. The name comes from the garden where it was discovered, not its height. This variety won the Perennial Plant of the Year award in 2007. It is the most widely available catmint in Janesville nurseries.

The flowers are a soft lavender-blue. The foliage is aromatic gray-green. It blooms heavily in June, takes a brief pause in July heat, then reblooms in August and September if you shear it back after the first flush. It is incredibly reliable. Every nursery in town carries it.

Use ‘Walker’s Low’ in the middle or back of borders. Plant it in drifts of three, five, or seven for the best effect. It pairs beautifully with yellow coreopsis, pink coneflower, and ornamental grasses.

Cat’s Meow – Compact and Floriferous

‘Cat’s Meow’ is a Proven Winners introduction that forms a tight mound eighteen to twenty inches tall and twenty-four to thirty inches wide. It does not flop open in the center like older varieties sometimes do. The flower color is a richer blue-purple than ‘Walker’s Low.’

This variety reblooms more reliably without shearing. It just keeps pushing new flower spikes all summer. The foliage stays clean and attractive even in humid August weather. It is an excellent choice for smaller Janesville yards or the front of larger borders.

Look for the Proven Winners branded pots at Home Depot, Lowe’s, and K&W Greenery. The branding ensures you are getting the true cultivar.

Junior Walker – Dwarf and Dense

‘Junior Walker’ is a sport of ‘Walker’s Low’ that stays compact at fifteen to eighteen inches tall and wide. It has the same lovely lavender-blue flowers but on a plant half the size. This makes it perfect for edging pathways, rock gardens, and containers.

It maintains a naturally rounded shape without pruning. The flower power is impressive for such a small plant. It blooms from June through September with a brief mid-summer slowdown. Deer and rabbits ignore it just like its larger cousin.

This variety is less common in big box stores. Check K&W Greenery, Driftless Gardens, and online sources.

Blue Wonder – Intense Color

‘Blue Wonder’ offers perhaps the truest blue flowers of any catmint. The color leans more violet than lavender. The plant reaches eighteen to twenty-four inches tall and wide. It has a slightly more upright habit than the mounding types.

This variety was selected in the Netherlands for its color intensity. It performs well in our climate but can be harder to find. K&W Greenery usually has it. Online nurseries are a reliable backup.

Six Hills Giant – The Tall Statement

If you want drama, ‘Six Hills Giant’ delivers. It reaches thirty-six inches tall and wide. The flower spikes are longer and more abundant. The foliage is larger and more textured. This variety makes a bold statement in the back of a border or as a seasonal screen.

It can flop in rich soil or too much shade. Plant it in lean soil and full sun. Stake early if needed. It is less common in local nurseries. White Flower Farm and Bluestone Perennials are good online sources.

Cat’s Pajamas – The New Compact Star

‘Cat’s Pajamas’ is one of the newest catmint introductions from Proven Winners. It forms a perfect ball of flowers fourteen to eighteen inches tall and eighteen to twenty inches wide. The flower density is incredible. The plant is nearly covered in indigo-blue blooms from early summer to frost.

It was bred for container performance but thrives in the ground too. The compact habit makes it ideal for Janesville’s smaller urban lots. Look for it at big box stores carrying Proven Winners and at K&W Greenery.

Planting and First-Year Care

Site Preparation

Catmint asks for little but gives much. Give it the right start and it will reward you for years.

Choose a spot with full sun. At least six hours of direct midday sun. Eight is better. The south or west side of a structure is ideal. Avoid low spots where water collects after rain.

Test your drainage. Dig a hole twelve inches deep and wide. Fill with water. Let it drain. Fill again. If the second fill does not drain in four hours, you have a drainage problem. Amend heavily with compost and coarse sand. Or build a raised bed. Catmint will rot in wet soil.

Loosen the soil to a depth of twelve inches. Mix in two to three inches of compost. Do not add fertilizer. Catmint prefers lean soil. Rich soil produces floppy growth and fewer flowers. If your soil is already decent, just loosen it. Skip the compost.

Planting Technique

Water the plant thoroughly in its pot an hour before planting. This reduces transplant shock and makes the root ball easier to handle.

Dig a hole twice as wide as the pot and the same depth. The plant should sit at the same level it was in the pot. Planting too deep causes crown rot. Planting too high exposes roots.

Remove the plant from the pot. If roots are circling, gently tease them apart with your fingers. Make four vertical cuts an inch deep around the root ball if it is severely root-bound. This sounds harsh but stimulates new outward growth.

Place the plant in the hole. Backfill with the native soil you removed. Firm gently with your hands. Do not stomp. You want soil contact without compaction.

Water deeply. A slow trickle from a hose for ten minutes per plant. This settles soil and eliminates air pockets. Add more soil if settling creates a depression.

Mulch with two inches of shredded bark, straw, or pine needles. Keep mulch an inch away from the crown. Mulch conserves moisture, suppresses weeds, and moderates soil temperature.

First Month Care

The first four weeks are critical. The plant is growing new roots into your soil.

Water every other day for the first week if no rain. Then every third day for week two. Twice a week for weeks three and four. Adjust for rainfall. Stick your finger two inches into the soil near the plant. If it is dry, water. If moist, wait.

Do not fertilize. I cannot stress this enough. Fertilizer now creates weak, floppy growth. The compost you mixed in at planting provides all the nutrients needed for the first year.

Watch for wilting on hot afternoons. This is normal. The large leaves lose water faster than the new roots can absorb it. The plant should recover by morning. If it does not, water deeply.

Remove any flowers that appear in the first month. Pinch them off at the base. This redirects energy to root establishment. You will get far more flowers in year two and beyond.

Ongoing Maintenance

Catmint is low maintenance, not no maintenance. A few simple tasks keep it looking great.

Deadheading: After the first heavy bloom in June, shear the entire plant back by half. Use hedge shears or a string trimmer. This looks brutal. Do it anyway. The plant will flush new growth and bloom again in August and September.

Spring cleanup: In early April, cut back last year’s dead stems to two inches above ground. New growth emerges from the crown. Do not pull the old stems. You might damage the crown.

Division: Every three to four years, the center of the plant may die out. This is the signal to divide. Do it in early spring as new growth appears. Dig the whole clump. Cut into sections with a sharp spade. Each section needs roots and shoots. Replant immediately. Water well. Share extras with neighbors.

Winter care: None needed in Janesville. Leave the dead foliage standing. It protects the crown and provides winter interest. The seeds feed goldfinches. Cut back in early spring.

Designing with Catmint in Your Janesville Garden

Pollinator Garden Combinations

Catmint is a pollinator magnet. Bees, butterflies, and hummingbirds visit constantly. Design a dedicated pollinator bed with catmint as the backbone.

Plant three ‘Walker’s Low’ in a triangle. Surround with five purple coneflowers. Add three butterfly weed plants for orange contrast. Edge with ‘Junior Walker’ catmint. Include a birdbath and a flat stone for butterfly basking. This ten-by-ten-foot bed will buzz with life from June to October.

All these plants share the same requirements. Full sun. Well-drained soil. Minimal water once established. No fertilizer. They form a self-sustaining community.

Edging and Pathway Plantings

‘Junior Walker’ and ‘Cat’s Pajamas’ excel as edging plants. Their compact mounds stay neat without trimming. Plant them eighteen inches apart along a sidewalk or driveway. They soften the hardscape and release fragrance when brushed.

For a longer season, interplant with spring bulbs. Daffodils and tulips bloom before the catmint emerges. The catmint foliage hides the bulb foliage as it yellows. Perfect succession.

Rose Companions

Catmint is the classic underplanting for roses. The gray-green foliage complements rose canes. The blue flowers contrast with pink, red, yellow, and white roses. Both want full sun and good drainage.

Plant catmint eighteen inches from the rose base. This allows air circulation for both plants. The catmint shades the rose roots, keeping them cool and moist. The aromatic catmint foliage may deter some rose pests.

Container Gardening

Catmint grows well in containers. Choose ‘Junior Walker,’ ‘Cat’s Meow,’ or ‘Cat’s Pajamas.’ Use a pot at least sixteen inches wide and deep. Fill with high-quality potting mix mixed with one-third coarse sand or perlite.

Container catmint needs more water. Check daily in summer. Fertilize once in spring with slow-release organic fertilizer. Overwinter pots in an unheated garage. Water monthly. Repot every two years.

Gravel and Rock Gardens

Catmint thrives in the lean, well-drained conditions of a rock garden. Plant it among sedums, hens-and-chicks, and ornamental grasses. The soft mounds contrast beautifully with spiky and rosette forms.

Mulch with pea gravel instead of bark. It looks natural and prevents crown rot. The gravel reflects heat, which catmint loves.

Troubleshooting Common Catmint Problems

Flopping and Opening Centers

This is the number one complaint. The plant looks great in June. By August it is a sprawling mess with a bare center. Three causes. Too much shade. Too much water. Too rich soil.

The fix. Move to full sun. Stop watering once established. Do not fertilize. Shear back hard after first bloom. Divide every three years. ‘Cat’s Meow’ and ‘Cat’s Pajamas’ resist flopping better than older varieties.

Powdery Mildew

White powdery coating on leaves in late summer. Caused by humidity and poor air circulation. Catmint is resistant but not immune.

Prevention. Space plants properly. Water at the base, not overhead. Morning sun dries foliage fast. Remove affected leaves. Severe cases respond to neem oil or potassium bicarbonate spray. But honestly, by the time mildew appears, the season is ending. Just cut the plant back. It will return clean next spring.

Root Rot

Sudden wilting that does not recover after watering. Leaves yellow and brown. Plant pulls easily from soil. Roots are black and mushy. Caused by poor drainage or overwatering.

There is no cure. Remove the plant. Improve drainage before replanting. Add coarse sand and compost. Create a raised mound. Or choose a different spot. Catmint prefers to be too dry than too wet.

Not Blooming

Lush green growth but few flowers. Usually too much nitrogen. Lawn fertilizer runoff is a common culprit. Or the plant is in too much shade.

Stop fertilizing. If near a fertilized lawn, create a buffer zone. Move to more sun if possible. Shear back in early summer to stimulate flower buds.

Where to Buy Catmint Plants in Janesville WI – Quick Reference

Best Overall Selection

K&W Greenery on North Parker Drive. Most varieties. Best plant quality. Knowledgeable staff. One-year guarantee.

Best Prices

Menards and Walmart for common varieties in spring. Rotary Botanical Gardens plant sale for unique varieties at fair prices.

Best for Pollinator Gardens

Driftless Gardens in Fulton. Ecological focus. Native companions. Design advice available.

Best Convenience

Home Depot and Lowe’s. Extended hours. One-year guarantee. Proven Winners varieties. Check plant quality carefully.

Best Online for Janesville

Prairie Nursery in Westfield, WI. Local grower. Zone-appropriate plants. Fast shipping. Pollinator collections.

Best for Rare Varieties

White Flower Farm and Bluestone Perennials online. ‘Six Hills Giant,’ ‘Dropmore,’ ‘Blue Wonder.’ Larger plants. Higher prices. Excellent quality.

Seasonal Shopping Calendar for Janesville Gardeners

January to March: Plan and Order

Browse online catalogs. Decide which varieties you want. Order from online nurseries for spring shipping. Sign up for nursery email lists for sale notifications. Sketch your planting plan.

April: Early Shopping

Big box stores receive first shipments. Selection limited. Plants small. Good time to buy if you have a cold frame or protected holding area. K&W Greenery opens for the season mid-month.

May: Prime Time

Mother’s Day weekend: Rotary Botanical Gardens sale. Third week: Safe to plant outdoors. Best selection at all nurseries. Farmers market vendors start bringing perennials.

June: Last Call for Spring

Selection declining. Sales beginning. Still time to plant. Water diligently. Shear back any plants already blooming in pots.

July to August: Maintenance Mode

Not ideal for planting. Clearance deals possible but risky. Focus on caring for established plants. Deadhead for rebloom.

September to October: Fall Planting Window

Excellent time to plant. Nurseries may have fresh stock. Plants establish roots before winter. Mulch well after planting. Water until ground freezes.

November to December: Rest and Dream

Ground freezes. Gardening pauses. Review what worked. Plan next year’s additions. Order bare-root plants for early spring shipping.

Budget-Friendly Catmint Strategies

Buy Small, Be Patient

A quart pot costs half what a gallon pot costs. In one growing season, you cannot tell the difference. For mass plantings, buy plugs or four-inch pots. Space them properly. Mulch well. They will fill in by year two.

Divide and Multiply

One mature catmint plant yields three to five divisions every three years. That is free plants. Trade divisions with gardening friends. Join the Janesville Garden Club. Their plant exchanges are legendary.

Shop Sales Strategically

Mid-June clearance at big box stores. July fourth sales at nurseries. End-of-season sales in September. The plants may look rough. Catmint recovers. Cut back hard. Water. Wait.

Grow from Seed

Catmint grows easily from seed. Start indoors in March. Transplant in May. Or direct sow in prepared beds in May. Seed packets cost three dollars for fifty plants. Varieties like ‘Walker’s Low’ come true from seed. Named cultivars like ‘Cat’s Meow’ do not. They must be purchased as plants.

Supporting Local Janesville Businesses

Why Buy Local

When you buy catmint from K&W Greenery or Driftless Gardens, your money stays in Rock County. These businesses employ local people. They pay local taxes. They sponsor Little League teams and donate to the food pantry.

Local nurseries grow plants suited to our climate. They know which varieties survive our winters. They know our soil. They know our pests. Big box stores ship the same plants to Janesville, Jacksonville, and Juneau. Local growers customize for us.

Local expertise is free. Ask the perennial manager at K&W. Ask the owner at Driftless. Ask the vendor at the farmers market. You get advice tailored to your specific yard. No website chatbot can match that.

Building Relationships

Become a regular. Learn the staff names. Visit in the off-season for holiday greens. Attend their workshops. Join their loyalty programs. When you need a hard-to-find plant, they will call you when it arrives. When you have a plant emergency, they will fit you in.

These relationships make gardening more successful and more fun. You become part of a community. Gardening in Janesville is better together.

Conclusion

Finding where to buy catmint plants in Janesville WI does not have to be complicated. You have excellent options. K&W Greenery for selection and expertise. The Rotary Botanical Gardens sale for unique varieties and a good cause. Driftless Gardens for ecological guidance. Big box stores for convenience and price. Online nurseries for rare cultivars and doorstep delivery.

The key is timing. Shop mid-April through early June for the best selection. Plant after May 15 in spring or September 1 through October 1 in fall. Choose healthy plants with white roots and tight buds. Give them full sun, well-drained soil, and a little patience.

Catmint will reward you with months of blue flowers, clouds of pollinators, and a garden that smells like summer when you brush past it. It asks for so little and gives so much. That is the kind of plant every Janesville gardener needs.

So grab your garden gloves. Check the forecast. Pick a sunny Saturday. Visit a nursery on this list. Bring home a few pots of catmint. Plant them. Water them. Stand back. Your garden just got a whole lot better.

Frequently Asked Questions

Where can I find the widest variety of catmint plants in Janesville?

K&W Greenery on North Parker Drive typically carries the widest selection of catmint varieties in Janesville, including ‘Walker’s Low,’ ‘Cat’s Meow,’ ‘Junior Walker,’ and ‘Blue Wonder.’ Their plants are grown locally and acclimated to zone 5b conditions.

When does the Rotary Botanical Gardens plant sale happen?

The Rotary Botanical Gardens plant sale occurs annually on Mother’s Day weekend. This sale features divisions from their display gardens, including proven catmint varieties that have thrived in Janesville’s climate for years.

Which catmint varieties are most deer resistant?

All catmint varieties are highly deer resistant due to their aromatic foliage. ‘Walker’s Low,’ ‘Cat’s Meow,’ and ‘Junior Walker’ are equally effective at deterring deer and rabbits in Janesville gardens.

Can I order catmint online for delivery to Janesville?

Yes, several reputable online nurseries ship catmint to Janesville. Prairie Nursery in Westfield, Wisconsin offers zone-appropriate plants with fast shipping. Proven Winners Direct, White Flower Farm, and Bluestone Perennials also ship quality catmint varieties to southern Wisconsin.

How do I know if a catmint plant at the store is healthy?

Check for gray-green foliage without yellowing, a full mounded shape, tight flower buds rather than open blooms, and white firm roots that fill the pot without excessive circling. Avoid plants with mushy roots, powdery mildew, or weed-filled pots.

What is the difference between catmint and catnip?

Catmint (Nepeta x faassenii) is an ornamental perennial with lavender-blue flowers that attracts pollinators but not cats. Catnip (Nepeta cataria) is a weedy herb that attracts cats aggressively and spreads readily. Garden centers sell catmint for landscaping, not catnip.