When should I plant Slnečnica in Zone 1b?

Start Slnečnica seeds indoors around May 4. Transplant outdoors after Jun 1. Expect first harvest around Aug 5.

What is the last frost date for Zone 1b?

The average last spring frost date for Zone 1b is May 25. The first fall frost averages Aug 28, giving a 95-day growing season.

Can I grow Slnečnica in Zone 1b?

Yes. Slnečnica needs 90 days to harvest. Zone 1b has a 95-day growing season, which is sufficient.

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🌻 Growing Slnečnica in Zone 1b

Zone 1b has harsh winters and a short growing season. Start Slnečnica early indoors to maximize your harvest window. Posledný mráz: May 25. Prvý mráz: Aug 28.

Planting Calendar

Indoor

Outdoor

Harvest

May 4Aug 28

Season: May 25 – Aug 28 (95 dní)

Zóna1b

Posledný mrázMay 25

Prvý mrázAug 28

Sezóna95 dní

Úroda90 dní

SlnkoPlné Slnko

When to Plant Slnečnica in Zone 1b

Start Seeds Indoors: May 4

Start Slnečnica seeds indoors around May 4 (3 týždňov pred posledným mrazom). Optimal germination temperature: 75F. Germinates in 7-14 days.

Transplant Outdoors: Jun 1

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

Harvest: Aug 5

First harvest approximately Aug 5 (~65 dní from transplant). Continue harvesting until first frost (Aug 28).

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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