When to Plant Lavender in Oklahoma
Start Seeds Indoors
Sunday, January 25, 2026
Transplant outdoors: Sunday, April 19, 2026
State
Oklahoma
USDA Zones
6b, 7a, 7b, 8a
Avg Last Frost
Sunday, April 5, 2026
Cities Covered
583
Oklahoma Planting Schedule by Zone
Oklahoma spans 4 zones — find yours below for the most accurate dates.
| Zone | Last Frost | Start Indoors | Transplant |
|---|---|---|---|
| 6b | Wednesday, April 15, 2026 | Wednesday, February 4, 2026 | Wednesday, April 29, 2026 |
| 7a | Friday, April 10, 2026 | Friday, January 30, 2026 | Friday, April 24, 2026 |
| 7b | Sunday, April 5, 2026 | Sunday, January 25, 2026 | Sunday, April 19, 2026 |
| 8a | Friday, March 20, 2026 | Friday, January 9, 2026 | Friday, April 3, 2026 |
Dates based on average last frost. Check your local forecast before planting.
🌿 About Lavender
🤝 Companion Plants for Lavender
Good Companions
Growing Lavender in Oklahoma: Complete Guide
Lavender (Lavandula angustifolia) is a warm-season crop that needs a head start indoors before Oklahoma's last frost. Most Oklahoma gardeners begin seeds indoors around Sunday, January 25, 2026 and move transplants outside around Sunday, April 19, 2026, after the risk of frost has passed.
Because Oklahoma stretches across 4 USDA hardiness zones (6b, 7a, 7b, 8a), planting windows can shift by as much as two to four weeks from one end of the state to the other. Gardeners in the warmer southern zones can start earlier, while those in cooler northern zones should wait until the zone table above shows their last frost has passed.
With 90 days to maturity, Lavender needs the indoor head start that Oklahoma's growing season requires. Starting indoors ensures you have strong transplants ready the moment outdoor conditions are right.
Lavender requires full sun (6+ hours) and low (drought tolerant once established) moisture. Most of Oklahoma receives adequate sunlight during the growing season, though gardeners in humid eastern regions should watch for fungal issues and ensure good air circulation.
For the most precise planting dates tailored to your exact location, enter your ZIP code on our planting calendar or use the zone table above to find the schedule for your area of Oklahoma.
Growing Lavender in Oklahoma: Local Tips
Climate-specific advice for Oklahoma gardeners.
Wind desiccation kills plants
Kansas and Nebraska's persistent winter winds pull moisture from plants even when temps are above freezing; plant on the south or east side of a windbreak.
Frequently Asked Questions
When should I plant Lavender in Oklahoma?
In Oklahoma, start Lavender seeds indoors around Sunday, January 25, 2026 and transplant outdoors around Sunday, April 19, 2026 after your last frost. Oklahoma spans zones 6b–8a, so dates shift by 1–4 weeks depending on where you live.
What is the last frost date in Oklahoma?
Oklahoma spans 4 USDA zones (6b, 7a, 7b, 8a), so last frost dates vary by region. Adams, Balko, Beaver (6b) sees frost until around Wednesday, April 15, 2026, while Dougherty, Ardmore, Countyline (8a) is frost-free much earlier.
How long does Lavender take to grow in Oklahoma?
Lavender takes about 90 days from transplant (or direct sow) to harvest. Starting seeds indoors in Oklahoma gives you a head start so plants are ready to go out after the last frost.
What USDA zones does Oklahoma cover for Lavender?
Oklahoma includes zones 6b, 7a, 7b, 8a. Lavender grows well across all of these zones with adjusted timing — use the zone table above to find the right dates for your part of the state.
Find Precise Dates for Your City
Select a city for exact planting dates based on local frost records.