When to plant Lavender in Clare County, MI
Plant Lavender in Clare County, between June 4 and June 18 — the only viable window. Zone 5a's short season (142 frost-free days) rules out a fall crop.
When to Plant Lavender in Clare County, MI
What to do in July
We've pulled the most time-sensitive tasks for Clare County, Michigan this July and put them front and centre. Tackle them in order.
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Get lavender seeds going inside
Your window is short. These crops want several weeks of indoor growth before they go outside.
August will be here before you know it — start on
- First harvests: lavender
Lavender (Lavandula angustifolia) is a fragrant Mediterranean sub-shrub prized for its silver-gray foliage and intensely aromatic purple flower spikes. A classic companion for roses and an unmatched pollinator magnet, lavender thrives in the exact conditions that challenge many plants: poor, rocky, alkaline soil with excellent drainage and full sun. English lavender is the most cold-hardy species, reliably perennial in Zones 5–9. Fresh or dried flowers are widely used in sachets, essential oils, culinary applications, and dried arrangements.
Clare County, Michigan is in USDA Zone 5a. The average last spring frost is May 14 and the first fall frost is October 3, giving you a growing season of approximately 142 days.
At an elevation of 1,150 feet, Clare County receives approximately 41.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87°F, providing good warmth for Lavender during the growing season.
Clare County Soil Profile
Soil Type
Silt Loam
Soil pH
6.2-7.1
Drainage
Well Drained
Lavender Planting Risk Windows
Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.
Soil Compatibility in Clare County
How your county's soil matches Lavender's growing requirements.
Soil pH
Your soil pH (6.2–7.1) overlaps with Lavender's range (6.5–7.5), though not a perfect match.
Soil Texture
The silt loam soil in Clare County is excellent for Lavender — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is excellent (4.7%) — Lavender will thrive.
How to Plant Lavender
Lavender Water Budget
Monthly Watering Guide for Lavender
Lavender needs approximately 0.3 inches of water per week (1.3" per month). Here's how your county's rainfall compares month by month.
| Month | Lavender Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.9" | 0" | ❄️ Dormant |
| Feb | — | 1.9" | 0" | ❄️ Dormant |
| Mar | — | 3.2" | 0" | ❄️ Dormant |
| Apr | — | 3.8" | 0" | ❄️ Dormant |
| May | 1.3" | 5.5" | 0" | ✅ Rainfall sufficient |
| Jun | 1.3" | 5.5" | 0" | ✅ Rainfall sufficient |
| Jul | 1.3" | 4.1" | 0" | ✅ Rainfall sufficient |
| Aug | 1.3" | 4.4" | 0" | ✅ Rainfall sufficient |
| Sep | 1.3" | 3.9" | 0" | ✅ Rainfall sufficient |
| Oct | 1.3" | 2.8" | 0" | ✅ Rainfall sufficient |
| Nov | — | 2.6" | 0" | ❄️ Dormant |
| Dec | — | 2" | 0" | ❄️ Dormant |
Water needs are for active growing months only (May–Oct in Clare County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Lavender Heat Requirements (GDD)
What are Growing Degree Days (GDD)?
Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.
Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.
Lavender Planting Timeline — Clare County, MI
Lavender Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 5 | Mar 5 – Mar 19 |
| Transplant Outdoors | June 4 | Jun 4 – Jun 18 |
| Bloom | August 13 | Aug 13 – Sep 24 |
Plant 0.5" deep · 18" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | — |
| May | — |
| June | Transplant Outdoors |
| July | — |
| August | Bloom |
| September | Bloom |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.3"/week · Natural rainfall sufficient
📅 Days to Maturity
90–120 days
🧪 Soil pH
Needs 6.5–7.5 · Your soil: acceptable
🗺️ USDA Zone
Zone 5a
📆 Growing Season
142 days in Clare County
Growing Tips for Lavender in Clare County
Direct sow Lavender outdoors after May 14 in Clare County when soil has warmed and frost danger has passed.
General growing tips
The single most important requirement for lavender success is excellent drainage — it will rot in heavy clay or wet winter soils before cold alone kills it. Amend with coarse sand or fine gravel if needed; raised beds work well in Zones 5–6. Start from rooted cuttings or transplants rather than seed for named cultivars. Transplant after last frost when soil is reliably warm (55°F+). Avoid rich or overly moist soils. Prune lightly after each flush of bloom, but never cut into old wood below the green growth zone — it will not regenerate from leafless woody stems. In Zones 5–6, mulch lightly with gravel (not bark/organic material which traps moisture) around the crown for winter protection. Year 2+ plants develop into full, mature shrubs with the most prolific bloom.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Lavender in Other Locations
Frequently Asked Questions
When should I plant Lavender in Clare County, MI?
Clare County is in Zone 5a with an average last frost of May 14. Plan your Lavender planting based on this frost date — see the calendar above for exact timing.
What planting zone is Clare County, MI?
Clare County, Michigan is in USDA Hardiness Zone 5a. The average last spring frost is May 14 and first fall frost is October 3.
When should I plant Lavender in Clare County, MI?
In Clare County, MI, plant Lavender after the last frost (around May 14) and before the first frost (around October 3). Best results when soil holds above 50°F.
What growing zone is Clare County, MI for Lavender?
Clare County sits in USDA Zone 5a. Lavender grows reliably in zones 5a through 9b, so it's a good fit here.
Can Lavender grow in Clare County's climate?
Yes — Lavender grows well in Clare County's temperate climate. Clare County averages a 142-day frost-free season, with last frost around May 14 and first frost around October 3.
Your Clare County Garden Planner — Free
A 22-page printable planner built for Clare County (Zone 5a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.