When should I plant Semangka in Zone 4a?

Start Semangka seeds indoors around Apr 7. Transplant outdoors after May 19. Expect first harvest around Aug 2.

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 Semangka in Zone 4a?

Yes. Semangka needs 90 days to harvest. Zone 4a has a 149-day growing season, which is sufficient.

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🍉 Growing Semangka in Zone 4a

Zone 4a has cold winters and a moderate growing season. Timing is key for Semangka in this zone. Embun beku terakhir: May 5. Embun beku pertama: Oct 1.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 7Oct 1

Season: May 5 – Oct 1 (149 hari)

Zona4a

Embun beku terakhirMay 5

Embun beku pertamaOct 1

Musim149 hari

Panen90 hari

MatahariMatahari Penuh

When to Plant Semangka in Zone 4a

Start Seeds Indoors: Apr 7

Start Semangka seeds indoors around Apr 7 (4 minggu sebelum embun beku terakhir). Optimal germination temperature: 85F. Germinates in 4-12 days.

Transplant Outdoors: May 19

Transplant Semangka seedlings outdoors after May 19. Wait until soil temperature reaches 70F. Space plants at 1/m² (30cm jarak). Harden off plants for a week before moving outside.

Harvest: Aug 2

First harvest approximately Aug 2 (~75 hari from transplant). Continue harvesting until first frost (Oct 1).

Tanaman Pendamping

✅ Jagung✅ Nasturtium✅ Marigold✅ Lobak

❌ Kentang❌ Mentimun

Semangka 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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