What Should I Plant with Catmint

Catmint thrives alongside drought-tolerant perennials like salvia, coneflower, and lavender. These companions share similar sun and soil needs while attracting pollinators. Avoid planting catmint near water-loving plants or aggressive spreaders that crowd its airy habit.

Key Takeaways

• Catmint loves full sun and well-drained soil: Choose companions with the same requirements for easy care.
• Salvia, coneflower, and lavender are top partners: They bloom together, support pollinators, and create a cohesive look.
• Herbs like thyme, oregano, and sage work well: They share Mediterranean origins and low-water needs.
• Ornamental grasses add texture and movement: Grasses like blue fescue or feather reed grass complement catmint’s soft mounds.
• Avoid wet-soil plants and aggressive spreaders: Hostas, astilbe, and mint varieties will struggle or overtake catmint.
• Design in drifts for maximum impact: Plant catmint in groups of three or more with companions for a natural, flowing border.
• Deadhead spent blooms to extend the show: A midsummer shear encourages a second flush of flowers on catmint and many companions.

Quick Answers to Common Questions

What is the absolute best companion plant for catmint?

Salvia is the top companion. It shares identical growing needs, blooms at the same time, and its upright spires perfectly contrast catmint’s mounding habit.

Can I plant catmint with roses?

Only at the sunny edge of a rose bed. Roses want rich soil and fertilizer; catmint gets floppy with too much nitrogen. Keep their root zones separate.

Does catmint spread aggressively like mint?

No. Catmint (Nepeta) is clump-forming and well-behaved. True mint (Mentha) runs by underground runners and will take over. They are different genera.

When should I cut back catmint for a second bloom?

Shear plants by half in early July after the first flush fades. Water once. Fresh growth and flowers return in two to three weeks.

What grasses look best with catmint?

Feather reed grass ‘Karl Foerster’ for vertical structure, blue fescue for low blue tufts, and little bluestem for native ecology and fall color.

Why Companion Planting Matters for Catmint

Catmint is one of those plants that makes gardening feel easy. It blooms for months. It handles heat and drought like a champ. Bees and butterflies cannot get enough of it. But even a superstar like catmint performs better with the right supporting cast. That is where companion planting comes in.

When you ask what should i plant with catmint, you are really asking how to build a plant community. Good neighbors share the same growing conditions. They bloom at complementary times. They attract beneficial insects. They cover each other’s bare spots. And they look beautiful together without one bullying the other.

Catmint, or Nepeta, hails from the Mediterranean region. It wants full sun. It wants sharp drainage. It wants lean soil. It does not want wet feet. It does not want rich, heavy clay that stays soggy. Any plant you pair with it should feel at home in those same conditions. That is the golden rule. Get that right, and the rest falls into place.

Understanding Catmint’s Growth Habit

Before picking partners, know what catmint actually does in the garden. Most varieties form low, mounding clumps. They reach twelve to twenty-four inches tall and wide. The stems are slightly woody at the base. The foliage is gray-green and aromatic. The flowers are small, tubular, and usually lavender-blue. They appear in loose spikes from late spring through fall.

Catmint has a relaxed, slightly floppy habit. It spills over edges. It softens hard lines. It fills gaps between shrubs. It works as a ground cover when planted en masse. But it is not dense enough to smother weeds completely. It needs partners that cover the ground at different levels. Tall spires. Low creepers. Upright clumps. This layered approach creates a resilient planting that looks good all season.

Shared Cultural Requirements

The most successful catmint companions share three non-negotiables. Full sun means at least six hours of direct light. Well-drained soil means water moves through quickly. Low fertility means you do not need to fertilize. In fact, rich soil makes catmint floppy and reduces flowering. Your companions should feel the same way.

Plants that evolved in Mediterranean climates, prairies, or rocky slopes are your best bets. They have deep roots. They have waxy or hairy leaves that reduce water loss. They have a natural tolerance for lean conditions. This is not about coddling. It is about matching plants to place. When you do that, maintenance drops. Watering drops. Fertilizing disappears. The garden just works.

Best Flowering Companions for Catmint

Flowers are the obvious place to start. Catmint’s long bloom season means it overlaps with many perennials. The trick is choosing partners that extend the color show, not just duplicate it. You want succession. You want contrast. You want harmony.

Salvia: The Classic Partner

If catmint has a best friend, it is salvia. Both belong to the mint family. Both love sun and drainage. Both bloom for months. But salvia brings upright spires where catmint brings soft mounds. That vertical-horizontal contrast is design gold.

Try Salvia nemorosa ‘Caradonna’ with its dark purple stems and violet flowers. Or ‘May Night’ for deep indigo spikes. For a softer look, ‘Snow Hill’ offers white wands that glow at dusk. Plant salvia behind or between catmint clumps. The salvia rises. The catmint fills the base. Together they create a complete vertical picture.

Both plants respond to the same maintenance. Shear them back by half after the first flush fades in midsummer. Water once. Wait. They will both rebound with a second heavy bloom in late summer. This synchronized care routine makes them incredibly practical partners.

Coneflower for Late-Season Power

Echinacea picks up where catmint leaves off. Catmint peaks in early summer. Coneflower peaks in midsummer to fall. The transition is seamless. Coneflower’s bold, daisy-like flowers add a completely different shape. The prominent central cones attract goldfinches in autumn. The sturdy stems stand tall above catmint’s haze.

Purple coneflower is the classic. But do not overlook ‘White Swan’ for a moon garden. Or ‘Cheyenne Spirit’ for a mix of orange, red, and yellow. The warm tones of newer coneflower varieties create stunning contrast against catmint’s cool blues. Just make sure your soil drains well. Coneflower hates wet clay as much as catmint does.

Lavender for a Mediterranean Vibe

Lavender and catmint are soulmates. Same region. Same needs. Same silver foliage. Same pollinator magnetism. But lavender is woodier. More structured. More evergreen in mild winters. It brings a stronger architectural presence.

English lavender (Lavandula angustifolia) is the hardiest choice. ‘Hidcote’ and ‘Munstead’ stay compact. They form neat domes that contrast with catmint’s looser habit. Plant them in a row along a path. Let the catmint spill between. The fragrance when you brush past is unforgettable. Both plants dislike mulch against their crowns. Use gravel instead. It reflects heat. It improves drainage. It looks right.

Russian Sage for Airy Height

Perovskia atriplicifolia is essentially a giant, airy catmint. The foliage is similar. The flowers are similar. But the scale is completely different. Russian sage reaches three to four feet tall. It creates a transparent veil of lavender-blue. You can see through it to plants behind.

Use Russian sage as a backdrop. Plant catmint in front. The effect is a gradient of blue haze. ‘Denim ‘n Lace’ is a newer, more compact variety that does not flop. ‘Little Spire’ stays under three feet. Both play well with catmint’s scale. Just give Russian sage space. It spreads slowly by runners. It does not like being crowded.

Yarrow for Flat-Topped Contrast

Achillea brings flat flower heads. Catmint brings spikes. That shape difference creates visual interest. Yarrow comes in yellow, white, pink, red, and terracotta. The ferny foliage adds texture even out of bloom. ‘Moonshine’ with its soft yellow flowers is a standout against blue catmint.

Yarrow spreads by rhizomes. It can be assertive. Choose clumping varieties like ‘Coronation Gold’ or the ‘Seduction’ series. Give it room. Divide every few years. The payoff is a tough, long-blooming partner that handles heat and drought even better than catmint. Butterflies love the landing-pad flowers.

Black-Eyed Susan for Cheerful Gold

Rudbeckia fulgida ‘Goldsturm’ is a garden workhorse. Golden petals. Dark centers. Blooms for weeks in late summer. It forms a dense clump that suppresses weeds. It handles clay better than most catmint companions. But it still prefers decent drainage.

The gold-purple combination is a classic for a reason. It works. It pops. It feels sunny even on cloudy days. Plant rudbeckia in drifts behind or beside catmint. The catmint’s early blue flowers bridge the gap until rudbeckia hits its stride. Then the gold takes center stage into fall.

Herbs and Vegetables That Love Catmint

Catmint is an herb. It belongs in the herb garden. But it also earns its keep in the vegetable patch. Its flowers attract pollinators that boost yields. Its scent confuses pests. Its low habit covers soil. The question of what should i plant with catmint extends naturally to edibles.

Mediterranean Herbs: Thyme, Oregano, Sage

These three are the holy trinity of dry, sunny herb gardens. Thyme creeps. Oregano spreads. Sage forms a woody shrub. All three share catmint’s exact cultural needs. All three bloom at slightly different times. All three feed bees.

Creeping thyme (Thymus serpyllum) makes a living mulch around catmint. It tolerates foot traffic. It releases fragrance when stepped on. Oregano (‘Greek’ or ‘Italian’) forms a loose mound that mingles with catmint stems. Culinary sage (Salvia officinalis) adds broad, pebbly leaves that contrast with catmint’s fine texture. Purple sage and tricolor sage add foliage color.

Plant these herbs in a raised bed or rock garden with catmint. Mulch with gravel. Water deeply but infrequently. Harvest regularly to keep growth tight. The combination is productive, beautiful, and nearly maintenance-free.

Rosemary and Lavender Cotton

Rosemary is less hardy but thrives in the same conditions where it survives. In zones 7 and warmer, it becomes a shrub. ‘Arp’ and ‘Hill Hardy’ are the toughest cultivars. Its needle-like foliage and pale blue flowers echo catmint’s palette. Lavender cotton (Santolina chamaecyparissus) adds bright yellow buttons on silver foliage. It is essentially a ground-cover lavender look-alike. Both add evergreen structure in mild climates.

Vegetables That Benefit from Catmint

Tomatoes, peppers, eggplant, and squash all appreciate catmint nearby. The flowers draw bumblebees that buzz-pollinate solanaceous crops. The scent may deter aphids, flea beetles, and squash bugs. Plant catmint at the corners of raised beds. Let it spill over edges. It will not compete with deep-rooted vegetables.

Avoid planting catmint near plants that need rich, moist soil. Lettuce, spinach, and celery want consistent moisture and nitrogen. Catmint’s lean, dry preferences clash with theirs. Keep the herb and vegetable zones separate but adjacent. Let the pollinators commute between them.

Shrubs and Grasses for Structure

Perennials come and go. Shrubs and grasses stay. They give the garden bones. They provide winter interest. They frame the seasonal show. When considering what should i plant with catmint, think about the permanent layer too.

Small Shrubs for Year-Round Presence

Dwarf conifers are excellent catmint companions. Juniperus horizontalis ‘Blue Chip’ hugs the ground with steel-blue foliage. Picea pungens ‘Globosa’ forms a perfect blue sphere. Pinus mugo ‘Mops’ stays a tight green bun. These evergreens anchor the planting when catmint is cut back for winter.

Deciduous shrubs work too. Caryopteris (bluebeard) blooms blue in late summer on a three-foot shrub. It is basically a woody catmint. Perovskia (Russian sage) blurs the line between perennial and subshrub. Buddleia ‘Lo & Behold’ series stays compact and blooms all summer. All share the sun-and-drainage requirement.

Plant shrubs first. Space them for mature width. Fill between with catmint. The catmint grows fast. It covers the bare mulch while shrubs establish. Years later, you can remove some catmint if shrubs need room. Or let them mingle. The contrast of woody structure and herbaceous softness is timeless.

Ornamental Grasses for Movement and Light

Grasses catch wind. They catch light. They add sound. They extend the season into winter. Catmint’s mounded habit pairs beautifully with every grass form. Upright. Arching. Fountain. Tufted.

Calamagrostis ‘Karl Foerster’ (feather reed grass) is the gold standard. Vertical green blades in spring. Wheat-colored plumes by June. Stands tall all winter. Plant three or five behind a drift of catmint. The vertical lines organize the softness.

Festuca glauca ‘Elijah Blue’ (blue fescue) is a tiny tuft of intense blue. It echoes catmint’s foliage color. Plant it in groups of seven or nine at the front of the border. It stays neat. It never flops. It is evergreen in most climates.

Pennisetum ‘Hameln’ (dwarf fountain grass) arches gracefully. Bottlebrush plumes appear in late summer. The whole plant moves in a breeze. It bridges the gap between catmint’s early bloom and fall’s finale.

Schizachyrium scoparium (little bluestem) is a native prairie grass. Blue-green in summer. Copper-orange in fall. White seed tufts catch low winter light. It supports skipper butterflies. It handles clay better than many grasses. A fantastic ecological choice.

Using Grasses as Living Mulch

Low, spreading grasses can replace wood mulch. Sporobolus heterolepis (prairie dropseed) forms a fine-textured fountain. It smells like popcorn in late summer. It creates a soft matrix. Plant catmint plugs directly into it. The combination mimics a natural plant community. Less mulch. Less weeding. More life.

Plants to Avoid Near Catmint

Knowing what not to plant is just as valuable. Some plants clash culturally. Some clash aesthetically. Some are bullies. Avoiding these saves frustration.

Water-Loving Plants

Hostas, astilbes, ferns, ligularias, and Japanese irises need consistent moisture. They want rich, organic soil. They want shade or part shade. Catmint wants the opposite. Planting them together means one group suffers. Either the catmint rots, or the shade plants crisp. Keep them in separate beds.

Aggressive Spreaders

True mints (Mentha species) run underground. They will swallow catmint. Bee balm (Monarda) can be thuggish in moist soil. Gooseneck loosestrife (Lysimachia clethroides) is a notorious colonizer. Obedient plant (Physostegia) is anything but obedient. These plants need containment. Catmint does not. Do not let them meet.

Heavy Feeders

Roses love rich soil and regular fertilizer. Catmint gets floppy and flower-shy with too much nitrogen. If you want roses and catmint together, plant catmint at the rose bed’s sunny edge. Do not fertilize the catmint zone. Let the rose roots reach out if they want. But do not mix them intimately.

Plants That Need Division Often

Daylilies, tall phlox, and bearded iris need dividing every few years. Digging them up disturbs catmint’s roots. Catmint prefers to be left alone for five to seven years. Plant high-maintenance perennials where you can access them without trampling catmint.

Design Tips for a Catmint-Centered Garden

Great plants deserve great design. Catmint’s versatility lets it play many roles. Here is how to use it for maximum impact.

Plant in Drifts, Not Dots

A single catmint plant looks lonely. Three looks intentional. Five looks like a drift. Seven looks like nature. Odd numbers feel organic. Even numbers feel formal. Catmint leans organic. Space plants eighteen to twenty-four inches apart. They will knit together in two seasons.

Repeat the Same Companions

Repetition creates rhythm. Use the same three to five companion species throughout the border. Salvia here. Coneflower there. Grass over there. Then repeat. The eye moves smoothly. The garden feels cohesive. A collector’s garden (one of everything) looks chaotic. A designed garden repeats.

Layer by Height

Think in three layers. Ground layer: creeping thyme, sedum, blue fescue. Mid layer: catmint, salvia, yarrow, lavender. Upper layer: Russian sage, coneflower, feather reed grass, dwarf shrubs. Each layer occupies different air space. Roots occupy different soil depths. Light penetrates to all levels. The planting is resilient.

Consider Bloom Succession

Map your bloom calendar. Catmint: May to July (first flush), August to October (second flush). Salvia: May to June, September. Coneflower: July to September. Russian sage: July to October. Sedum ‘Autumn Joy’: August to November. Grasses: plumes July to winter. Aim for no gaps. Overlap is good. Gaps are visible.

Use Catmint as Edging

Catmint softens hard edges beautifully. Plant it along paths, patios, driveways, walls. It spills over. It releases fragrance when brushed. It tolerates reflected heat. It defines the space without a hard line. ‘Walker’s Low’ and ‘Junior Walker’ are especially good for this. They stay lower and neater than the species.

Create a Pollinator Corridor

Connect catmint plantings across your property. A continuous bloom highway supports more insects than isolated patches. Link the front yard to the back. Connect to a neighbor’s garden (with permission). Include early bulbs (crocus, species tulips) for spring. Include late asters and goldenrod for fall. Catmint carries the summer load.

Maintenance Made Simple

The best design reduces work. Catmint and its companions need very little. Cut back in late winter or early spring. Shear after first bloom if you want a tidy mound and second flush. Divide every five to seven years if centers die out. Mulch with gravel, not bark. Water deeply but rarely once established. That is it. No staking. No fertilizing. No spraying. The plants do the work.

Seasonal Care for Catmint and Companions

A great planting looks good in every season. Not just June. Here is the year-round rhythm.

Spring: Emergence and First Bloom

Cut back last year’s stems to six inches in early spring. New growth emerges from the base. This is the time to divide if needed. Apply a thin layer of compost if soil is very poor. Otherwise, skip it. Watch for the first flower buds in May. Bees arrive. The show begins.

Summer: Peak and Shear

June is catmint’s glory month. Companions join in. Deadhead spent flowers if you are fastidious. Or shear the whole plant by half in early July. It looks drastic. It works. New growth appears in two weeks. Flowers return in three. Water during extended drought. Otherwise, let nature handle it.

Fall: Second Act and Prep

September brings a fresh flush. Coneflowers and grasses peak. Asters join if you planted them. Stop deadheading. Let seed heads form. Goldfinches eat coneflower seeds. Sparrows eat grass seeds. The garden feeds wildlife. Leave stems standing. They protect crowns. They catch snow. They look architectural in frost.

Winter: Structure and Rest

Evergreen shrubs and grasses carry the show. Catmint is a low mound of gray stems. It catches frost beautifully. It provides cover for beneficial insects. Do not clean up yet. Wait for spring. The garden is not dead. It is dormant. There is a difference.

Troubleshooting Common Issues

Even easy plants have off days. Here is what to watch for.

Floppy Stems

Too much shade. Too much water. Too much fertilizer. Too rich soil. Catmint leans toward light. If it is floppy, it is telling you something. Move it to more sun. Stop watering. Stop feeding. Amend with grit if soil is heavy. Shear it back. It will regrow tighter.

Center Die-Out

After five to seven years, the center may go woody and bare. This is normal. Dig the clump in spring. Discard the woody center. Replant the vigorous outer sections. Space them fresh. They will fill in fast. This rejuvenation keeps catmint youthful indefinitely.

Powdery Mildew

Rare in full sun with good air flow. Common in shade or crowded beds. Thin surrounding plants. Improve air circulation. Avoid overhead watering. Remove badly affected leaves. It is cosmetic, not fatal. Resistant varieties like ‘Walker’s Low’ rarely get it.

Root Rot

The killer. Heavy clay. Poor drainage. Overwatering. Irrigation leaks. Catmint cannot tolerate soggy roots. If leaves yellow and wilt despite moist soil, check drainage. Dig a test hole. Fill with water. It should drain in an hour. If not, raise the bed. Add grit. Or move the plant. Prevention is the only cure.

Catmint Varieties and Their Best Partners

Not all catmints are the same. Size, habit, and bloom time vary. Match the variety to the companions.

Nepeta faassenii ‘Walker’s Low’

The gold standard. Twenty-four to thirty inches. Long bloom. Sterile (no seeding). Perennial Plant of the Year 2007. Partners: everything listed above. It is the most versatile.

Nepeta ‘Junior Walker’

Compact version. Fifteen to eighteen inches. Same long bloom. Better for edging, containers, small spaces. Partners: dwarf salvia, blue fescue, creeping thyme, sedum.

Nepeta racemosa ‘Little Titch’

Tiny. Eight to ten inches. Perfect for rock gardens, troughs, wall tops. Partners: miniature sedums, thyme, dwarf iris, small alliums.

Nepeta sibirica ‘Souvenir d’André Chaudron’

Upright. Thirty to thirty-six inches. Larger leaves. Blooms earlier. Can seed aggressively. Partners: taller grasses, coneflower, bee balm (if contained), rose campion.

Nepeta ‘Six Hills Giant’

Old classic. Thirty-six inches. Loose, floppy habit. Spectacular in mass. Needs space. Partners: Russian sage, tall grasses, butterfly bush, large coneflowers.

Creating a Catmint Meadow

For a larger area, consider a catmint meadow. This is not a wildflower meadow. It is a designed matrix. Low maintenance. High ecology. High beauty.

The Matrix Approach

Choose three to five matrix plants. Catmint. A grass. A late-season perennial. A spring bulb. A ground cover. Plant them in a repeating pattern. Not rows. A loose grid. Seventeen inches on center. Plugs are cheapest. They establish fast.

Year One: Establish

Water regularly the first season. Mulch with fine gravel. Weed diligently. The matrix plants are small. Weeds see opportunity. Stay ahead. By fall, the ground should be mostly covered.

Year Two: Fill In

Plants knit together. Weed pressure drops. First real flower show. Shear catmint after bloom if desired. Let grasses stand. Enjoy the pollinators.

Year Three and Beyond: Manage

Annual cutback in late winter. Occasional editing. Remove volunteers if they disrupt the design. Add bulbs in fall for spring color. The meadow matures. It becomes a stable plant community. It sequesters carbon. It manages stormwater. It feeds life. It brings joy.

Conclusion

So what should i plant with catmint? The answer is simple. Plants that love sun. Plants that love drainage. Plants that love lean soil. Plants that bloom at different times. Plants that feed pollinators. Plants that contrast in form. Salvia. Coneflower. Lavender. Russian sage. Yarrow. Black-eyed Susan. Thyme. Oregano. Sage. Feather reed grass. Blue fescue. Little bluestem. Dwarf junipers. Bluebeard. The list is long because the conditions are common.

Start with three companions. Plant them in drifts. Watch what happens. The bees will find you. The butterflies will stay. The garden will ask for less and give more. That is the promise of good companions. That is the magic of catmint.

Your garden is a conversation. Catmint is a great conversationalist. Give it friends who speak its language. Then step back. Listen. Learn. Enjoy. The best gardens are not planted. They are grown. And catmint makes growing easy.

Frequently Asked Questions

Can catmint grow in partial shade?

Catmint tolerates light shade but flowers less and gets leggy. For best bloom and compact habit, give it at least six hours of direct sun. In hot climates, afternoon shade is acceptable.

Is catmint deer resistant?

Yes. The aromatic foliage deters deer and rabbits. It is one of the most reliable deer-resistant perennials. However, desperate animals may sample anything.

How far apart should I space catmint plants?

Space most varieties eighteen to twenty-four inches apart. Dwarf types like ‘Junior Walker’ can go twelve to fifteen inches. They will fill in within two growing seasons.

Does catmint come back every year?

Yes, catmint is a hardy perennial in zones 3-8. It dies back to the ground in winter and returns from the crown in spring. It lives many years with minimal care.

Can I grow catmint in containers?

Absolutely. Use a gritty, well-drained potting mix. Choose a pot with drainage holes. Water when the top inch is dry. ‘Junior Walker’ and ‘Little Titch’ are best for pots.

Why is my catmint flopping open in the center?

Flopping usually means too much shade, water, or fertilizer. Catmint wants lean, dry conditions. Shear it back hard, move to full sun, and stop feeding. It will regrow tighter.