When should I plant Lavenda in Zone 4a?

Start Lavenda seeds indoors around Feb 24. Transplant outdoors after May 12. Expect first harvest around Aug 10.

What is the last frost date for Zone 4a?

The average last spring frost date for Zone 4a is May 5. The first fall frost averages Oct 1, giving a 149-day growing season.

Can I grow Lavenda in Zone 4a?

Yes. Lavenda needs 100 days to harvest. Zone 4a has a 149-day growing season, which is sufficient.

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🟣 Growing Lavenda in Zone 4a

Zone 4a has cold winters and a moderate growing season. Timing is key for Lavenda in this zone. Baridi ya mwisho: May 5. Baridi ya kwanza: Oct 1.

Planting Calendar

Indoor

Outdoor

Harvest

Feb 24Oct 1

Season: May 5 – Oct 1 (149 siku)

Eneo4a

Baridi ya mwishoMay 5

Baridi ya kwanzaOct 1

Msimu149 siku

Mavuno100 siku

JuaJua Kamili

When to Plant Lavenda in Zone 4a

Start Seeds Indoors: Feb 24

Start Lavenda seeds indoors around Feb 24 (10 wiki kabla ya baridi barafu ya mwisho). Optimal germination temperature: 70F. Germinates in 14-28 days.

Transplant Outdoors: May 12

Transplant Lavenda seedlings outdoors after May 12. Wait until soil temperature reaches 55F. Space plants at 1/m² (30cm nafasi). Harden off plants for a week before moving outside.

Harvest: Aug 10

First harvest approximately Aug 10 (~90 siku from transplant). Continue harvesting until first frost (Oct 1). Lavenda can overwinter in mild climates for continued harvest.

Upandaji wa Pamoja

✅ Waridi✅ Biringanya✅ Nyanya✅ Kabichi

Lavenda 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 Garden Lavenda

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

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