When should I plant Slunečnice in Zone 6a?

Start Slunečnice seeds indoors around Apr 7. Transplant outdoors after May 5. Expect first harvest around Jul 9.

What is the last frost date for Zone 6a?

The average last spring frost date for Zone 6a is Apr 28. The first fall frost averages Oct 8, giving a 163-day growing season.

Can I grow Slunečnice in Zone 6a?

Yes. Slunečnice needs 90 days to harvest. Zone 6a has a 163-day growing season, which is sufficient. You can plant up to 5 successions.

🌻

🌻 Growing Slunečnice in Zone 6a

Zone 6a has mild winters and a long growing season -- good conditions for Slunečnice. Poslední mráz: Apr 28. První mráz: Oct 8.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 7Oct 8

Season: Apr 28 – Oct 8 (163 dní) · Succession: plant every 2 weeks (up to 5x)

Zóna6a

Poslední mrázApr 28

První mrázOct 8

Sezóna163 dní

Sklizeň90 dní

SluncePlné Slunce

When to Plant Slunečnice in Zone 6a

Start Seeds Indoors: Apr 7

Start Slunečnice seeds indoors around Apr 7 (3 týdnů před posledním mrazem). Optimal germination temperature: 75F. Germinates in 7-14 days.

Transplant Outdoors: May 5

Transplant Slunečnice seedlings outdoors after May 5. Wait until soil temperature reaches 55F. Space plants at 1/m² (30cm od sebe). Harden off plants for a week before moving outside.

Harvest: Jul 9

First harvest approximately Jul 9 (~65 dní from transplant). Continue harvesting until first frost (Oct 8).

Smíšená Výsadba

✅ Okurky✅ Dýně ✅ Kukuřice✅ Fazole

❌ Brambory

Slunečnice 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 Slunečnice

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

Start Free Slunečnice Growing Guide