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When to Plant Lavender in Wrangell City and Borough, AK

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.

Wrangell City and Borough, Alaska is in USDA Zone 7a. The average last spring frost is April 23 and the first fall frost is October 20, giving you a growing season of approximately 180 days.

At an elevation of 1,533 feet, Wrangell City and Borough receives approximately 35.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 59ยฐF, so choose short-season varieties of Lavender to ensure they mature before fall.

Wrangell City and Borough, AK (Zone 7a) Moderate season
180 days
Last Spring Frost April 23
180 growing days
First Fall Frost October 20

Wrangell City and Borough Soil Profile

Soil Type

Silt Loam

Soil pH

5.1-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: Apr 23 🍅 Harvest: Jul 23 – Dec 3
Recommended (50%) ✗ May not fit
Transplant: Apr 30 🍅 Harvest: Jul 30 – Dec 10
Safe Start (90%) ✗ May not fit
Transplant: May 19 🍅 Harvest: Aug 18 – Dec 29

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
0.8″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Lavender needs ~0 GDD — county provides 0 GDD May not mature

Lavender Planting Timeline โ€” Wrangell City and Borough, AK

Lavender Planting Calendar

Activity When Date Range
Transplant Outdoors April 30 Apr 30 โ€“ May 14
Harvest July 30 Jul 30 โ€“ Dec 10

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 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 7a

Growing Season

180 days

Growing Tips for Wrangell City and Borough

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 Wrangell City and Borough, AK?

Wrangell City and Borough is in Zone 7a with an average last frost of April 23. Plan your Lavender planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Wrangell City and Borough, AK?

Wrangell City and Borough, Alaska is in USDA Hardiness Zone 7a. The average last spring frost is April 23 and first fall frost is October 20.

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Plan Your Garden with Confidence

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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 Wrangell City and Borough, AK. Local conditions may vary. Last updated: April 2026.