When should I plant Auringonkukka in Zone 2a?

Start Auringonkukka 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 Auringonkukka in Zone 2a?

Yes. Auringonkukka 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 Auringonkukka in Zone 2a

Zone 2a has harsh winters and a short growing season. Start Auringonkukka early indoors to maximize your harvest window. Viimeinen halla: May 15. Ensimmäinen halla: Sep 15.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 24Sep 15

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

Vyöhyke2a

Viimeinen hallaMay 15

Ensimmäinen hallaSep 15

Kausi123 päivää

Sato90 päivää

AurinkoTäysi Aurinko

When to Plant Auringonkukka in Zone 2a

Start Seeds Indoors: Apr 24

Start Auringonkukka seeds indoors around Apr 24 (3 viikkoa ennen viimeistä hallaa). Optimal germination temperature: 75F. Germinates in 7-14 days.

Transplant Outdoors: May 22

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

Harvest: Jul 26

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

Kumppaniviljely

✅ Kurkut✅ Kurpitsa ✅ Maissi✅ Pavut

❌ Perunat

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

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