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When to Plant Lavender in Wabaunsee County, KS

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.

Wabaunsee County, Kansas is in USDA Zone 6a. The average last spring frost is April 18 and the first fall frost is October 18, giving you a growing season of approximately 183 days.

At an elevation of 660 feet, Wabaunsee County receives approximately 30.9 inches of rainfall annually with predominantly loam soil. Summer highs average 87ยฐF, providing good warmth for Lavender during the growing season.

Wabaunsee County, KS (Zone 6a) Moderate season
183 days
Last Spring Frost April 18
183 growing days
First Fall Frost October 18

Wabaunsee County Soil Profile

Soil Type

Loam

Soil pH

6.8-7.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: Apr 19 🍅 Harvest: Jul 19 – Nov 1
Recommended (50%) ✗ May not fit
Transplant: Apr 25 🍅 Harvest: Jul 25 – Nov 7
Safe Start (90%) ✗ May not fit
Transplant: May 9 🍅 Harvest: Aug 8 – Nov 21

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
0.7″/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 ~2,211 GDD — county provides 2,790 GDD Good fit

Lavender Planting Timeline โ€” Wabaunsee County, KS

Lavender Planting Calendar

Activity When Date Range
Transplant Outdoors April 25 Apr 25 โ€“ May 9
Harvest July 25 Jul 25 โ€“ Nov 7

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 Transplant Outdoors
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 6a

Growing Season

183 days

Growing Tips for Wabaunsee 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 Wabaunsee County, KS?

Wabaunsee County is in Zone 6a with an average last frost of April 18. Plan your Lavender planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Wabaunsee County, KS?

Wabaunsee County, Kansas is in USDA Hardiness Zone 6a. The average last spring frost is April 18 and first fall frost is October 18.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Wabaunsee County gardeners in Zone 6a organize planting dates, track what's growing, and never miss a planting window.

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