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When to Plant Lavender in Mohave County, AZ

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.

Mohave County, Arizona is in USDA Zone 8b. The average last spring frost is April 5 and the first fall frost is November 8, giving you a growing season of approximately 217 days.

At an elevation of 3,748 feet, Mohave County receives approximately 8.2 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 96ยฐF, so Lavender may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Lavender will need more frequent watering and organic matter to retain nutrients. With low rainfall, drip irrigation is essential for growing Lavender successfully. Mulch heavily to conserve soil moisture.

Mohave County, AZ (Zone 8b) Long season
217 days
Last Spring Frost April 5
217 growing days
First Fall Frost November 8

Mohave County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.2-8.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: Mar 30 🍅 Harvest: Jun 29 – Nov 30
Recommended (50%) ✗ May not fit
Transplant: Apr 12 🍅 Harvest: Jul 12 – Dec 13
Safe Start (90%) ✗ May not fit
Transplant: Apr 24 🍅 Harvest: Jul 24 – Dec 25

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
0.2″/week
You supply
0.6″/week
Watering frequency 1-2 times/week
Season total 1,139 gal / 100 sq ft
Drought risk

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

Lavender needs ~3,190 GDD — county provides 4,774 GDD Excellent fit

Lavender Planting Timeline โ€” Mohave County, AZ

Lavender Planting Calendar

Activity When Date Range
Transplant Outdoors April 12 Apr 12 โ€“ Apr 26
Harvest July 12 Jul 12 โ€“ Dec 13

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 Harvest

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 8b

Growing Season

217 days

Growing Tips for Mohave 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 Mohave County, AZ?

Mohave County is in Zone 8b with an average last frost of April 5. Plan your Lavender planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Mohave County, AZ?

Mohave County, Arizona is in USDA Hardiness Zone 8b. The average last spring frost is April 5 and first fall frost is November 8.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Mohave County gardeners in Zone 8b 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 Mohave County, AZ. Local conditions may vary. Last updated: April 2026.