When should I plant Sipuli in Zone 6a?

Start Sipuli seeds indoors around Feb 17. Transplant outdoors after Mar 31. Expect first harvest around Jun 19.

What is the last frost date for Zone 6a?

The average last spring frost date for Zone 6a is Apr 28. The first fall frost averages Oct 8, giving a 163-day growing season.

Can I grow Sipuli in Zone 6a?

Yes. Sipuli needs 110 days to harvest. Zone 6a has a 163-day growing season, which is sufficient.

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🧅 Growing Sipuli in Zone 6a

Zone 6a has mild winters and a long growing season -- good conditions for Sipuli. Viimeinen halla: Apr 28. Ensimmäinen halla: Oct 8.

Planting Calendar

Indoor

Outdoor

Harvest

Feb 17Oct 8

Season: Apr 28 – Oct 8 (163 päivää)

Vyöhyke6a

Viimeinen hallaApr 28

Ensimmäinen hallaOct 8

Kausi163 päivää

Sato110 päivää

AurinkoTäysi Aurinko

When to Plant Sipuli in Zone 6a

Start Seeds Indoors: Feb 17

Start Sipuli seeds indoors around Feb 17 (10 viikkoa ennen viimeistä hallaa). Optimal germination temperature: 70F. Germinates in 7-14 days.

Transplant Outdoors: Mar 31

Transplant Sipuli seedlings outdoors after Mar 31. Wait until soil temperature reaches 45F. Space plants at 9/m² (10cm välein). Harden off plants for a week before moving outside.

Harvest: Jun 19

First harvest approximately Jun 19 (~80 päivää from transplant). Continue harvesting until first frost (Oct 8).

Kumppaniviljely

✅ Mansikat✅ Kaali✅ Punajuuret✅ Salaatti✅ Porkkanat✅ Tomaatit

❌ Pavut❌ Herneet

Sipuli 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

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

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