Does Lavender Grow in Maine?
Yes, lavender can grow in Maine, but it requires careful planning. The key is choosing cold-hardy varieties, planting in very well-drained soil, and protecting plants from wet winter conditions. With the right varieties and a few simple steps, you can enjoy fragrant lavender even in Maine's challenging climate.
Can lavender survive Maine's cold winters?
Maine winters can drop to -20°F or colder, and that is tough for many plants. But some lavender types are bred to handle cold. The key is not just cold air, but wet soil in winter. Lavender hates wet roots, especially when the ground freezes and thaws. If water sits around the crown (where stems meet roots), the plant will rot.
To survive, you need three things:
- Cold-hardy lavender varieties (see next section)
- Excellent drainage – either sandy/gravelly soil or raised beds
- Winter protection – a light mulch of straw or evergreen boughs after the ground freezes
Do not use heavy bark mulch or leaves, as they hold moisture. The goal is to keep soil temperature steady, not to keep the plant warm. Many Mainers successfully grow lavender in raised beds or on slopes where water runs away quickly.
If you live in coastal Maine (Zones 5b-6), winters are milder and success is easier. Inland or northern Maine (Zones 3-4), you must choose the hardiest varieties and provide extra winter care.
What are the best lavender varieties for Maine?
Not all lavender is the same. The common "English lavender" is actually Lavandula angustifolia, and it is the most cold-hardy. Within that species, look for these specific cultivars proven to survive Maine winters:
| Variety | Cold Hardiness (Zone) | Key Feature |
|---|---|---|
| 'Munstead' | Zone 4-5 | Compact, early bloomer, very reliable |
| 'Hidcote' | Zone 5 | Deep purple flowers, strong fragrance |
| 'Phenomenal' | Zone 4 | Extremely hardy, tolerates humidity |
| 'SuperBlue' | Zone 5 | Vibrant blue flowers, good for drying |
| 'Lady' | Zone 5 | Dwarf variety, blooms first year |
Choose 'Phenomenal' or 'Munstead' for the best chance in Zone 4 or colder areas. Stay away from Spanish or French lavender – they cannot handle Maine winters. Always buy plants from a local nursery that sells varieties suited to your area, not from big box stores that sell tender types.
How do you plant lavender in Maine soil?
Maine soil is often heavy clay or acidic, and lavender wants the opposite – alkaline, sandy, or gravelly soil. You must fix the soil before planting. Here is a step-by-step plan:
- Choose a spot with full sun (at least 6-8 hours daily).
- Dig a hole twice as wide as the pot but no deeper.
- Mix the native soil with coarse sand, pea gravel, or crushed limestone. Aim for a 50/50 mix.
- Add a handful of lime if your soil is acidic (test pH – lavender wants 6.5 to 7.5).
- Set the plant so the top of the root ball is slightly above the soil line – do not bury the crown.
- Water once deeply, then do not water again unless the soil is bone dry for two weeks.
Raised beds are your best friend in Maine. A 6-8 inch high bed filled with sandy loam gives perfect drainage. You can also mound soil up 4-6 inches like a low hill. This prevents water from pooling around the roots during Maine's rainy springs.
If you are planting several lavenders, space them 18-24 inches apart. Lavender likes airflow, and crowded plants stay wet and get disease.
When should you plant lavender in Maine?
Spring is the only safe time to plant lavender in Maine. Aim for late May to early June, after the last frost. The ground has warmed up, and the plant has a full growing season to establish roots before winter.
Do not plant in fall. Newly planted lavender does not have a strong root system, and wet fall weather plus frozen ground will kill it. If you buy lavender in late summer, keep it in a pot and overwinter it in a cold frame or unheated garage, then plant the next spring.
In the first year, your lavender may not bloom heavily. That is fine – let it grow leaves and roots. Pinch off any flower buds that appear before July to encourage root growth.
How do you care for lavender through Maine's seasons?
Lavender care changes with the seasons. Here is a simple checklist:
Spring (April-May): Remove winter mulch as soon as the ground thaws. Prune off any dead or broken stems. Cut back remaining stems to about 6 inches above the woody base – but never cut into old wood (the brown, barky part) because new growth may not come back. Add a light layer of compost and a handful of lime around the base. Do not fertilize with nitrogen – lavender likes lean soil.
Summer (June-August): Water only during extreme drought – once every 2-3 weeks if no rain. Overwatering is the #1 killer. Harvest flowers when the first buds open, usually mid-July in Maine. Prune after harvest by cutting stems back to 2-3 sets of leaves above the woody base. This encourages a second flush of growth.
Fall (September-October): Stop pruning after September 1. Let the plant go fully dormant. Do not cut back in fall. Apply a light winter mulch – straw or pine boughs – only after the ground has frozen (usually November). Do not use leaves, hay (full of seeds), or bark.
Winter (November-March): Check that mulch is in place but not smothering the crown. Snow is actually a good insulator – let it stay. If you have heavy, wet snow, gently brush it off to avoid breaking branches. In a very mild winter, remove mulch temporarily if the ground is soggy.
Can you grow lavender in pots in Maine?
Yes, growing lavender in containers can be easier because you control the soil and drainage. But pots freeze completely in Maine winters, so you need to take extra steps. Use a large pot (at least 12-14 inches wide) made of terracotta, ceramic, or thick plastic. Terracotta is best because it lets soil dry out.
Use a mix of 50% potting soil and 50% coarse sand or perlite. Never use moisture-control potting mix. Place the pot in full sun, and water only when the top 2 inches of soil are dry – stick your finger in to check.
For winter, you have two options:
- Move the pot to an unheated garage or cold frame – the temperature should stay between 20-40°F. Water maybe once a month. Bring it back outside in late April.
- Leave it outside but insulate the pot – wrap the pot with bubble wrap or burlap, then put it inside a larger container filled with straw. Place it against a south-facing wall and cover the top with a
A simple soil moisture meter can help you avoid overwatering, especially in pots. Check out affordable moisture meters on Amazon – they are a great tool for beginners.
Potted lavender will not grow as large as in-ground plants, but you can still enjoy blooms each summer. Repot every 2-3 years in spring.
What common problems do Maine lavender growers face?
Here are the issues you are most likely to see, and how to solve them:
- Root rot (plant turns yellow and collapses): This is from too much water or heavy soil. Fix: dig up plant, remove rotted roots, replant in raised bed or add more sand/gravel. Prevent by never overwatering and planting on a mound.
- Winter kill (brown, dead stems in spring): Usually from wet soil freezing and thawing. Fix: improve drainage, add winter mulch only after ground freezes. Prune dead wood in spring.
- Poor flowering: Not enough sun, too much nitrogen fertilizer, or pruning at the wrong time. Fix: ensure 8 hours sun, stop fertilizing, prune right after flowering (mid-July).
- Woody, leggy plants: Not pruning enough. Fix: each spring, prune back to 6 inches above the woody base. Do not let the plant get too tall.
- Pests – fourlined plant bug or spittlebugs: These are minor. Spray off with water or use insecticidal soap. Healthy lavender rarely suffers serious pest damage.
One product that helps Maine lavender growers is a raised bed kit for easy drainage. Browse raised bed options on Amazon – even a simple 2x4 foot bed can give your lavender the drainage it needs.
If you want to dry your lavender harvest, a pruning shear with a comfortable grip makes the job faster. Find sturdy pruning shears on Amazon – look for bypass shears that make clean cuts without crushing stems.
Growing lavender in Maine takes a little extra work, but it is absolutely possible. Stick with hardy varieties, give them perfect drainage, and protect them from wet winter soil. You will be rewarded with beautiful purple blooms and a wonderful fragrance that lasts all summer.