When to Plant Lavender in Kiowa County, OK
Kiowa County, Oklahoma gardeners: here's your May plan
May is a pivotal month for Kiowa County, Oklahoma gardens. Focus on these tasks first and you'll set up the rest of the season for success.
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.
Kiowa County, Oklahoma is in USDA Zone 7b. The average last spring frost is April 6 and the first fall frost is November 4, giving you a growing season of approximately 212 days.
At an elevation of 967 feet, Kiowa County receives approximately 21.8 inches of rainfall annually with predominantly loam soil. Summer highs average 92°F, providing good warmth for Lavender during the growing season.
Kiowa County Soil Profile
Soil Type
Loam
Soil pH
6.2-7.2
Drainage
Well Drained
Plant 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 Kiowa County
How your county's soil matches Lavender's growing requirements.
Soil pH
Your soil pH (6.2–7.2) overlaps with Lavender's range (6.5–8.0), though not a perfect match.
Soil Texture
The loam soil in Kiowa County is excellent for Lavender — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Lavender.
Organic Matter
Organic matter is excellent (4.0%) — Lavender will thrive.
How to Plant Lavender
Plant Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
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 | — | 0.5" | 0" | ❄️ Dormant |
| Feb | — | 0.7" | 0" | ❄️ Dormant |
| Mar | — | 1.5" | 0" | ❄️ Dormant |
| Apr | 1.3" | 2" | 0" | ✅ Rainfall sufficient |
| May | 1.3" | 3" | 0" | ✅ Rainfall sufficient |
| Jun | 1.3" | 4" | 0" | ✅ Rainfall sufficient |
| Jul | 1.3" | 2.6" | 0" | ✅ Rainfall sufficient |
| Aug | 1.3" | 2.8" | 0" | ✅ Rainfall sufficient |
| Sep | 1.3" | 2" | 0" | ✅ Rainfall sufficient |
| Oct | 1.3" | 1.4" | 0" | ✅ Rainfall sufficient |
| Nov | 1.3" | 0.8" | 0.5" | 💧 Light watering |
| Dec | — | 0.6" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Nov in Kiowa 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 — Kiowa County, OK
Lavender Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | April 13 | Apr 13 – Apr 27 |
| Harvest | July 13 | Jul 13 – Nov 23 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Transplant Outdoors |
| May | — |
| June | — |
| July | Harvest |
| August | Harvest |
| September | Harvest |
| October | Harvest |
| November | Harvest |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.3"/week · Natural rainfall sufficient
📅 Days to Maturity
90–200 days
🧪 Soil pH
Needs 6.5–8 · Your soil: acceptable
🗺️ USDA Zone
Zone 7b
📆 Growing Season
212 days in Kiowa County
Growing Tips for Lavender in Kiowa County
Direct sow Lavender outdoors after April 06 in Kiowa County when soil has warmed and frost danger has passed.
Your 212.0-day growing season in Kiowa County is tight for Lavender (90.0-200.0 days to maturity). Start indoors and choose early-maturing varieties.
General growing tips
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 Kiowa County, OK?
Kiowa County is in Zone 7b with an average last frost of April 6. Plan your Lavender planting based on this frost date — see the calendar above for exact timing.
What planting zone is Kiowa County, OK?
Kiowa County, Oklahoma is in USDA Hardiness Zone 7b. The average last spring frost is April 6 and first fall frost is November 4.
Your Kiowa County Garden Planner — Free
A 24-page printable planner built for Kiowa County (Zone 7b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.