When should I plant Sončnica in Zone 4b?

Start Sončnica seeds indoors around Apr 10. Transplant outdoors after May 8. Expect first harvest around Jul 12.

What is the last frost date for Zone 4b?

The average last spring frost date for Zone 4b is May 1. The first fall frost averages Oct 5, giving a 157-day growing season.

Can I grow Sončnica in Zone 4b?

Yes. Sončnica needs 90 days to harvest. Zone 4b has a 157-day growing season, which is sufficient. You can plant up to 4 successions.

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🌻 Growing Sončnica in Zone 4b

Zone 4b has cold winters and a moderate growing season. Timing is key for Sončnica in this zone. Zadnja slana: May 1. Prva slana: Oct 5.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 10Oct 5

Season: May 1 – Oct 5 (157 dni) · Succession: plant every 2 weeks (up to 4x)

Cona4b

Zadnja slanaMay 1

Prva slanaOct 5

Sezona157 dni

Žetev90 dni

SoncePolno Sonce

When to Plant Sončnica in Zone 4b

Start Seeds Indoors: Apr 10

Start Sončnica seeds indoors around Apr 10 (3 tednov pred zadnjo zmrzaljo). Optimal germination temperature: 75F. Germinates in 7-14 days.

Transplant Outdoors: May 8

Transplant Sončnica seedlings outdoors after May 8. Wait until soil temperature reaches 55F. Space plants at 1/m² (30cm narazen). Harden off plants for a week before moving outside.

Harvest: Jul 12

First harvest approximately Jul 12 (~65 dni from transplant). Continue harvesting until first frost (Oct 5).

Sobivanje Rastlin

✅ Kumare✅ Buče ✅ Koruza✅ Fižol

❌ Krompir

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

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