When to plant Lavender in Wallace County County,
Plant Lavender in Wallace County County during the brief May 15–May 29 window. With 161 frost-free days, fall plantings can't mature before October 9.
When to Plant Lavender in Wallace County, KS
This month in Wallace County, Kansas
June is a pivotal month for Wallace County, Kansas gardens. Focus on these tasks first and you'll set up the rest of the season for success.
Before July arrives, get these ready
- Starting indoors: lavender
- First harvests: lavender
Lavender (Lavandula angustifolia) is a fragrant Mediterranean sub-shrub prized for its silver-gray foliage and intensely aromatic purple flower spikes. A classic companion for roses and an unmatched pollinator magnet, lavender thrives in the exact conditions that challenge many plants: poor, rocky, alkaline soil with excellent drainage and full sun. English lavender is the most cold-hardy species, reliably perennial in Zones 5–9. Fresh or dried flowers are widely used in sachets, essential oils, culinary applications, and dried arrangements.
Wallace County, Kansas is in USDA Zone 6a. The average last spring frost is May 1 and the first fall frost is October 9, giving you a growing season of approximately 161 days.
At an elevation of 1,023 feet, Wallace County receives approximately 33.9 inches of rainfall annually with predominantly loam soil. Summer highs average 83°F, so choose short-season varieties of Lavender to ensure they mature before fall.
Wallace County Soil Profile
Soil Type
Loam
Soil pH
6.7-7.2
Drainage
Well Drained
Lavender 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 Wallace County
How your county's soil matches Lavender's growing requirements.
Soil pH
Your soil pH (6.7–7.2) is within Lavender's preferred range (6.5–7.5).
Soil Texture
The loam soil in Wallace County is excellent for Lavender — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is excellent (4.4%) — Lavender will thrive.
How to Plant Lavender
Lavender Water Budget
Water stress score is 8/10 — 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 | — | 2.6" | 0" | ❄️ Dormant |
| Feb | — | 2.1" | 0" | ❄️ Dormant |
| Mar | — | 2.9" | 0" | ❄️ Dormant |
| Apr | — | 3.8" | 0" | ❄️ Dormant |
| May | 1.3" | 4.4" | 0" | ✅ Rainfall sufficient |
| Jun | 1.3" | 2.5" | 0" | ✅ Rainfall sufficient |
| Jul | 1.3" | 2.5" | 0" | ✅ Rainfall sufficient |
| Aug | 1.3" | 3.1" | 0" | ✅ Rainfall sufficient |
| Sep | 1.3" | 2.7" | 0" | ✅ Rainfall sufficient |
| Oct | 1.3" | 2.8" | 0" | ✅ Rainfall sufficient |
| Nov | — | 2.5" | 0" | ❄️ Dormant |
| Dec | — | 1.9" | 0" | ❄️ Dormant |
Water needs are for active growing months only (May–Oct in Wallace 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 — Wallace County, KS
Lavender Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 20 | Feb 20 – Mar 6 |
| Transplant Outdoors | May 15 | May 15 – May 29 |
| Bloom | July 24 | Jul 24 – Sep 18 |
Plant 0.5" deep · 18" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors |
| March | Start Indoors |
| April | — |
| May | Transplant Outdoors |
| June | — |
| July | Bloom |
| August | Bloom |
| September | Bloom |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.3"/week · Natural rainfall sufficient
📅 Days to Maturity
90–120 days
🧪 Soil pH
Needs 6.5–7.5 · Your soil: ideal
🗺️ USDA Zone
Zone 6a
📆 Growing Season
161 days in Wallace County
Growing Tips for Lavender in Wallace County
Direct sow Lavender outdoors after May 01 in Wallace County when soil has warmed and frost danger has passed.
General growing tips
The single most important requirement for lavender success is excellent drainage — it will rot in heavy clay or wet winter soils before cold alone kills it. Amend with coarse sand or fine gravel if needed; raised beds work well in Zones 5–6. Start from rooted cuttings or transplants rather than seed for named cultivars. Transplant after last frost when soil is reliably warm (55°F+). Avoid rich or overly moist soils. Prune lightly after each flush of bloom, but never cut into old wood below the green growth zone — it will not regenerate from leafless woody stems. In Zones 5–6, mulch lightly with gravel (not bark/organic material which traps moisture) around the crown for winter protection. Year 2+ plants develop into full, mature shrubs with the most prolific bloom.
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 Wallace County, KS?
Wallace County is in Zone 6a with an average last frost of May 1. Plan your Lavender planting based on this frost date — see the calendar above for exact timing.
What planting zone is Wallace County, KS?
Wallace County, Kansas is in USDA Hardiness Zone 6a. The average last spring frost is May 1 and first fall frost is October 9.
When should I plant Lavender in Wallace County, ?
In Wallace County, , plant Lavender after the last frost (around May 1) and before the first frost (around October 9). Best results when soil holds above 50°F.
What growing zone is Wallace County, for Lavender?
Wallace County sits in USDA Zone 6a. Lavender grows reliably in zones 5a through 9b, so it's a good fit here.
Can Lavender grow in Wallace County's climate?
Yes — Lavender grows well in Wallace County's temperate climate. Wallace County averages a 161-day frost-free season, with last frost around May 1 and first frost around October 9.
Your Wallace County Garden Planner — Free
A 22-page printable planner built for Wallace County (Zone 6a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.