When should I plant Bunga Matahari in Zone 3a?

Start Bunga Matahari seeds indoors around May 1. Transplant outdoors after May 29. Expect first harvest around Aug 2.

What is the last frost date for Zone 3a?

The average last spring frost date for Zone 3a is May 22. The first fall frost averages Sep 12, giving a 113-day growing season.

Can I grow Bunga Matahari in Zone 3a?

Yes. Bunga Matahari needs 90 days to harvest. Zone 3a has a 113-day growing season, which is sufficient. You can plant up to 1 successions.

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🌻 Growing Bunga Matahari in Zone 3a

Zone 3a has harsh winters and a short growing season. Start Bunga Matahari early indoors to maximize your harvest window. Embun beku terakhir: May 22. Embun beku pertama: Sep 12.

Planting Calendar

Indoor

Outdoor

Harvest

May 1Sep 12

Season: May 22 – Sep 12 (113 hari) · Succession: plant every 2 weeks (up to 1x)

Zona3a

Embun beku terakhirMay 22

Embun beku pertamaSep 12

Musim113 hari

Panen90 hari

MatahariMatahari Penuh

When to Plant Bunga Matahari in Zone 3a

Start Seeds Indoors: May 1

Start Bunga Matahari seeds indoors around May 1 (3 minggu sebelum embun beku terakhir). Optimal germination temperature: 75F. Germinates in 7-14 days.

Transplant Outdoors: May 29

Transplant Bunga Matahari seedlings outdoors after May 29. Wait until soil temperature reaches 55F. Space plants at 1/m² (30cm jarak). Harden off plants for a week before moving outside.

Harvest: Aug 2

First harvest approximately Aug 2 (~65 hari from transplant). Continue harvesting until first frost (Sep 12).

Tanaman Pendamping

✅ Mentimun✅ Labu ✅ Jagung✅ Kacang

❌ Kentang

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

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