When should I plant Sipuli in Zone 9b?

Start Sipuli seeds indoors around Dec 30. Transplant outdoors after Feb 10. Expect first harvest around May 1.

What is the last frost date for Zone 9b?

The average last spring frost date for Zone 9b is Mar 10. The first fall frost averages Nov 15, giving a 250-day growing season.

Can I grow Sipuli in Zone 9b?

Yes. Sipuli needs 110 days to harvest. Zone 9b has a 250-day growing season, which is sufficient.

🧅

🧅 Growing Sipuli in Zone 9b

Zone 9b has warm winters and an extended growing season -- excellent for heat-loving crops like Sipuli. Viimeinen halla: Mar 10. Ensimmäinen halla: Nov 15.

Planting Calendar

Indoor

Outdoor

Harvest

Dec 30Nov 15

Season: Mar 10 – Nov 15 (250 päivää)

Vyöhyke9b

Viimeinen hallaMar 10

Ensimmäinen hallaNov 15

Kausi250 päivää

Sato110 päivää

AurinkoTäysi Aurinko

When to Plant Sipuli in Zone 9b

Start Seeds Indoors: Dec 30

Start Sipuli seeds indoors around Dec 30 (10 viikkoa ennen viimeistä hallaa). Optimal germination temperature: 70F. Germinates in 7-14 days.

Transplant Outdoors: Feb 10

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

Harvest: May 1

First harvest approximately May 1 (~80 päivää from transplant). Continue harvesting until first frost (Nov 15).

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

Plan Your Garden Sipuli

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

Start Free Sipuli Growing Guide