When should I plant Lavender in Zone 1a?

Start Lavender seeds indoors around Mar 16. Transplant outdoors after Jun 1. Expect first harvest around Aug 30.

What is the last frost date for Zone 1a?

The average last spring frost date for Zone 1a is May 25. The first fall frost averages Aug 28, giving a 95-day growing season.

Can I grow Lavender in Zone 1a?

Zone 1a has a 95-day growing season, which may be too short for Lavender (100 days needed). Consider short-season varieties or season extension techniques.

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🟣 Growing Lavender in Zone 1a

Zone 1a has harsh winters and a short growing season. Start Lavender early indoors to maximize your harvest window. Last frost: May 25. First frost: Aug 28.

Season Too Short

Lavender needs 100 days to harvest, but Zone 1a has only a 95-day growing season. Consider short-season varieties or season extension techniques (cold frames, row covers).

Zone1a

Last FrostMay 25

First FrostAug 28

Season Length95 days

Days to Harvest100

SunFull Sun

Frost ToleranceModerate

Spacing1/sqft (12" apart)

When to Plant Lavender in Zone 1a

Start Seeds Indoors: Mar 16

Start Lavender seeds indoors around Mar 16 (10 weeks before last frost). Optimal germination temperature: 70°F. Germinates in 14–28 days.

Transplant Outdoors: Jun 1

Transplant Lavender seedlings outdoors after Jun 1. Wait until soil temperature reaches 55°F. Space plants at 1/sqft (12" apart). Harden off plants for a week before moving outside.

Harvest: Aug 30

First harvest approximately Aug 30 (~90 days from transplant). Continue harvesting until first frost (Aug 28). Lavender can overwinter in mild climates for continued harvest.

Companion Planting

✅ Roses✅ Eggplant✅ Tomatoes✅ Cabbage

Lavender in Other Zones

1a 1b 2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b 12a 12b 13a 13b

Plan Your Lavender Garden

Track Lavender from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.

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