When should I plant Слънчоглед in Zone 4a?

Start Слънчоглед seeds indoors around Apr 14. Transplant outdoors after May 12. Expect first harvest around Jul 16.

What is the last frost date for Zone 4a?

The average last spring frost date for Zone 4a is May 5. The first fall frost averages Oct 1, giving a 149-day growing season.

Can I grow Слънчоглед in Zone 4a?

Yes. Слънчоглед needs 90 days to harvest. Zone 4a has a 149-day growing season, which is sufficient. You can plant up to 4 successions.

🌻

🌻 Growing Слънчоглед in Zone 4a

Zone 4a has cold winters and a moderate growing season. Timing is key for Слънчоглед in this zone. Последна слана: May 5. Първа слана: Oct 1.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 14Oct 1

Season: May 5 – Oct 1 (149 дни) · Succession: plant every 2 weeks (up to 4x)

Зона4a

Последна сланаMay 5

Първа сланаOct 1

Сезон149 дни

Реколта90 дни

СлънцеПълно Слънце

When to Plant Слънчоглед in Zone 4a

Start Seeds Indoors: Apr 14

Start Слънчоглед seeds indoors around Apr 14 (3 седмици преди последната слана). Optimal germination temperature: 75F. Germinates in 7-14 days.

Transplant Outdoors: May 12

Transplant Слънчоглед seedlings outdoors after May 12. Wait until soil temperature reaches 55F. Space plants at 1/м² (30cm разстояние). Harden off plants for a week before moving outside.

Harvest: Jul 16

First harvest approximately Jul 16 (~65 дни from transplant). Continue harvesting until first frost (Oct 1).

Съвместно Засаждане

✅ Краставици✅ Тиква ✅ Царевица✅ Боб

❌ Картофи

Слънчоглед 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 Слънчоглед

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

Start Free Слънчоглед Growing Guide