When to Plant Lavender in DeKalb County, GA
Lavender is a fragrant perennial herb with silvery foliage and purple flower spikes. It is prized for its essential oils, culinary uses, and ornamental beauty.
DeKalb County, Georgia is in USDA Zone 7b. The average last spring frost is March 22 and the first fall frost is November 13, giving you a growing season of approximately 236 days.
At an elevation of 323 feet, DeKalb County receives approximately 50.3 inches of rainfall annually with predominantly clay loam soil. Summer highs average 94°F, providing good warmth for Lavender during the growing season. Clay soil retains moisture well for Lavender, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Lavender root diseases.
DeKalb County Soil Profile
Soil Type
Clay Loam
Soil pH
5.7-6.6
Drainage
Well Drained
Monthly Watering Guide for Lavender
Lavender needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Lavender Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 4.8" | 0" | ❄️ Dormant |
| Feb | — | 4.4" | 0" | ❄️ Dormant |
| Mar | 4.3" | 5.1" | 0" | ✅ Rainfall sufficient |
| Apr | 4.3" | 3.8" | 0.5" | 💧 Light watering |
| May | 4.3" | 3.6" | 0.7" | 💧 Light watering |
| Jun | 4.3" | 4" | 0.3" | 💧 Light watering |
| Jul | 4.3" | 5.7" | 0" | ✅ Rainfall sufficient |
| Aug | 4.3" | 4.5" | 0" | ✅ Rainfall sufficient |
| Sep | 4.3" | 3.5" | 0.8" | 💧 Light watering |
| Oct | 4.3" | 3.1" | 1.2" | 💧 Light watering |
| Nov | 4.3" | 3.8" | 0.5" | 💧 Light watering |
| Dec | — | 3.9" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in DeKalb County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Lavender Planting Timeline — DeKalb County, GA
Lavender Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | March 29 | Mar 29 – Apr 12 |
| Harvest | June 28 | Jun 28 – Nov 8 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Transplant Outdoors |
| April | Transplant Outdoors |
| May | — |
| June | Harvest |
| July | Harvest |
| August | Harvest |
| September | Harvest |
| October | Harvest |
| November | Harvest |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Low — drought tolerant
📅 Days to Maturity
90–200 days
🧪 Soil pH
Needs 6.5–8 · Your soil: N/A
🗺️ USDA Zone
Zone 7b
📆 Growing Season
236 days in DeKalb County
Growing Tips for DeKalb County
Plant in well-drained, sandy soil. Avoid heavy mulching around the crown. Prune after flowering but do not cut into old wood. Lavender resents wet winter conditions.
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 DeKalb County, GA?
DeKalb County is in Zone 7b with an average last frost of March 22. Plan your Lavender planting based on this frost date — see the calendar above for exact timing.
What planting zone is DeKalb County, GA?
DeKalb County, Georgia is in USDA Hardiness Zone 7b. The average last spring frost is March 22 and first fall frost is November 13.
Plan Your Garden with Confidence
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