Blog

When to Plant Lavender in Logan County, OK

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.

Logan County, Oklahoma is in USDA Zone 7a. The average last spring frost is April 3 and the first fall frost is November 3, giving you a growing season of approximately 214 days.

At an elevation of 982 feet, Logan County receives approximately 26.8 inches of rainfall annually with predominantly loam soil. Summer highs average 93ยฐF, providing good warmth for Lavender during the growing season.

Logan County, OK (Zone 7a) Long season
214 days
Last Spring Frost April 3
214 growing days
First Fall Frost November 3

Logan County Soil Profile

Soil Type

Loam

Soil pH

6.4-7.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: Mar 30 🍅 Harvest: Jun 29 – Nov 9
Recommended (50%) ✗ May not fit
Transplant: Apr 10 🍅 Harvest: Jul 10 – Nov 20
Safe Start (90%) ✗ May not fit
Transplant: Apr 25 🍅 Harvest: Jul 25 – Dec 5

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.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
0.5″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

Lavender needs ~2,864 GDD — county provides 4,226 GDD Excellent fit

Lavender Planting Timeline โ€” Logan County, OK

Lavender Planting Calendar

Activity When Date Range
Transplant Outdoors April 10 Apr 10 โ€“ Apr 24
Harvest July 10 Jul 10 โ€“ Nov 20

Plant 0.5" deep ยท 8" apart ยท Rows 12" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March โ€”
April Transplant Outdoors
May โ€”
June โ€”
July Harvest
August Harvest
September Harvest
October Harvest
November Harvest
December โ€”

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Low โ€” drought tolerant

Days to Maturity

90โ€“200 days

Soil pH

6.5 โ€“ 8

USDA Zone

Zone 7a

Growing Season

214 days

Growing Tips for Logan 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

Level Up Your Garden

Frequently Asked Questions

When should I plant Lavender in Logan County, OK?

Logan County is in Zone 7a with an average last frost of April 3. Plan your Lavender planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Logan County, OK?

Logan County, Oklahoma is in USDA Hardiness Zone 7a. The average last spring frost is April 3 and first fall frost is November 3.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Logan County gardeners in Zone 7a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Logan County, OK. Local conditions may vary. Last updated: April 2026.