When should I plant Slnečnica in Zone 2a?

Start Slnečnica seeds indoors around Apr 24. Transplant outdoors after May 22. Expect first harvest around Jul 26.

What is the last frost date for Zone 2a?

The average last spring frost date for Zone 2a is May 15. The first fall frost averages Sep 15, giving a 123-day growing season.

Can I grow Slnečnica in Zone 2a?

Yes. Slnečnica needs 90 days to harvest. Zone 2a has a 123-day growing season, which is sufficient. You can plant up to 2 successions.

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🌻 Growing Slnečnica in Zone 2a

Zone 2a has harsh winters and a short growing season. Start Slnečnica early indoors to maximize your harvest window. Posledný mráz: May 15. Prvý mráz: Sep 15.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 24Sep 15

Season: May 15 – Sep 15 (123 dní) · Succession: plant every 2 weeks (up to 2x)

Zóna2a

Posledný mrázMay 15

Prvý mrázSep 15

Sezóna123 dní

Úroda90 dní

SlnkoPlné Slnko

When to Plant Slnečnica in Zone 2a

Start Seeds Indoors: Apr 24

Start Slnečnica seeds indoors around Apr 24 (3 týždňov pred posledným mrazom). Optimal germination temperature: 75F. Germinates in 7-14 days.

Transplant Outdoors: May 22

Transplant Slnečnica seedlings outdoors after May 22. Wait until soil temperature reaches 55F. Space plants at 1/m² (30cm rozostup). Harden off plants for a week before moving outside.

Harvest: Jul 26

First harvest approximately Jul 26 (~65 dní from transplant). Continue harvesting until first frost (Sep 15).

Sprievodné Sadenie

✅ Uhorky✅ Tekvica ✅ Kukurica✅ Fazuľa

❌ Zemiaky

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

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