Lavender Companion Plants
Herb90 days to maturity
Lavender is a woody Mediterranean subshrub and herb grown for its intensely fragrant flower spikes, silvery foliage, and remarkable drought tolerance. It is a pollinator powerhouse, drawing in bees and butterflies all summer, and its aromatic oils make it largely pest-free. The one thing it will not tolerate is wet feet, so most lavender problems trace back to overwatering or heavy, poorly drained soil.
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Companion Planting Strategy for Lavender
Lavender thrives in lean, gritty, alkaline soil with full sun and little water, so the companion strategy is to group it with plants that share those same dry Mediterranean conditions. Its strong scent helps repel aphids and other pests from neighbors, while its flowers pull in pollinators and beneficial insects.
Best Companion Plants for Lavender
These plants grow well alongside Lavender — providing pest control, attracting pollinators, or making better use of your garden space.
Lavender's strong fragrance helps deter aphids from roses and draws in pollinators, while its mounded form makes an attractive low underplanting that does not crowd the rose's roots.
Thyme shares lavender's love of full sun, sharply drained lean soil, and low water, making them ideal Mediterranean bedmates that both attract pollinators.
How to Grow Lavender
- Botanical name
- Lavandula angustifolia
- Family
- Mint (Lamiaceae)
- Sun
- Full sun, 6-8+ hours daily
- Water
- Low; drought-tolerant once established, watered deeply but infrequently, never left in wet soil
- Soil
- Lean, gritty, sharply well-draining, slightly alkaline soil, pH 6.7-7.5
- Spacing
- 18-36 inches apart for good airflow
- Planting depth
- Usually grown from transplants or softwood cuttings; if seeding, surface sow and press in lightly since light aids germination
- Germination
- Slow and erratic, 14-30 days at 65-70F, often improved by cold stratification
- Days to maturity
- Plants typically bloom in their second year from seed; established plants flower in early to midsummer
- When to plant
- Set out transplants in spring after the last frost; hardy perennial in zones 5-9
- Harvest
- Cut stems in the morning after dew dries, when about half the buds on each spike have opened, for the strongest fragrance
Common Lavender Problems
Root rot and fungal wilt (from overwatering or wet soil)
Plant in gritty, fast-draining soil or raised beds, add gravel mulch, and water sparingly; lavender is far more likely to die from too much water than too little.
Woody, leggy plants with bare centers and dieback
Prune lightly each year after blooming, cutting back into green growth but never into old bare wood, and plan to replace plants every 5-10 years.
Poor performance in humidity and fungal leaf spotting
Space plants generously for airflow, use gravel or stone mulch to keep foliage dry, and choose heat- and humidity-tolerant varieties in muggy climates.
Yellowing leaves
Usually a sign of overwatering or overly rich soil; reduce watering, stop fertilizing, and keep the soil lean since lavender prefers poor ground.
Lavender Companion Planting FAQ
What are the best companion plants for lavender?
Lavender pairs beautifully with roses and thyme, along with other sun-loving, drought-tolerant Mediterranean plants like rosemary, sage, echinacea, and yarrow. The key is matching its need for full sun and lean, sharply drained soil, while its scent and flowers benefit neighbors by repelling pests and attracting pollinators.
What should you not plant with lavender?
Avoid pairing lavender with moisture-loving, heavy-feeding plants such as mint, hostas, or vegetables that need rich, consistently damp soil, since the watering they require will rot lavender's roots. Likewise keep it away from acid-loving plants like blueberries, because lavender prefers neutral to slightly alkaline ground.
Does lavender come back every year?
Yes, English lavender is a hardy perennial that returns each year in zones 5-9, becoming woodier and larger over time. With annual pruning and sharp drainage it can live for many years, though most plants are best replaced every 5-10 years as they grow leggy.
How much sun and water does lavender need?
Lavender demands full sun, at least 6-8 hours a day, to bloom well and stay compact. It is highly drought tolerant once established and should be watered deeply but infrequently, since soggy soil is the most common cause of lavender failure.
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Plan Your Lavender Garden
Use our interactive tools to design the perfect garden with Lavender and its companions.