When should I plant Bunga Matahari in Zone 4b?

Start Bunga Matahari seeds indoors around Apr 10. Transplant outdoors after May 8. Expect first harvest around Jul 12.

What is the last frost date for Zone 4b?

The average last spring frost date for Zone 4b is May 1. The first fall frost averages Oct 5, giving a 157-day growing season.

Can I grow Bunga Matahari in Zone 4b?

Yes. Bunga Matahari needs 90 days to harvest. Zone 4b has a 157-day growing season, which is sufficient. You can plant up to 4 successions.

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🌻 Growing Bunga Matahari in Zone 4b

Zone 4b has cold winters and a moderate growing season. Timing is key for Bunga Matahari in this zone. Fros terakhir: May 1. Fros pertama: Oct 5.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 10Oct 5

Season: May 1 – Oct 5 (157 hari) · Succession: plant every 2 weeks (up to 4x)

Zon4b

Fros terakhirMay 1

Fros pertamaOct 5

Musim157 hari

Tuaian90 hari

MatahariMatahari Penuh

When to Plant Bunga Matahari in Zone 4b

Start Seeds Indoors: Apr 10

Start Bunga Matahari seeds indoors around Apr 10 (3 minggu sebelum fros terakhir). Optimal germination temperature: 75F. Germinates in 7-14 days.

Transplant Outdoors: May 8

Transplant Bunga Matahari seedlings outdoors after May 8. Wait until soil temperature reaches 55F. Space plants at 1/m² (30cm jarak). Harden off plants for a week before moving outside.

Harvest: Jul 12

First harvest approximately Jul 12 (~65 hari from transplant). Continue harvesting until first frost (Oct 5).

Penanaman Teman

✅ Timun✅ 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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