When should I plant Rosemari in Zone 4b?

Start Rosemari seeds indoors around Feb 20. Transplant outdoors after May 8. Expect first harvest around Aug 6.

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 Rosemari in Zone 4b?

Yes. Rosemari needs 90 days to harvest. Zone 4b has a 157-day growing season, which is sufficient.

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🌿 Growing Rosemari in Zone 4b

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

Planting Calendar

Indoor

Outdoor

Harvest

Feb 20Oct 5

Season: May 1 – Oct 5 (157 hari)

Zona4b

Embun beku terakhirMay 1

Embun beku pertamaOct 5

Musim157 hari

Panen90 hari

MatahariMatahari Penuh

When to Plant Rosemari in Zone 4b

Start Seeds Indoors: Feb 20

Start Rosemari seeds indoors around Feb 20 (10 minggu sebelum embun beku terakhir). Optimal germination temperature: 70F. Germinates in 14-28 days.

Transplant Outdoors: May 8

Transplant Rosemari 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: Aug 6

First harvest approximately Aug 6 (~90 hari from transplant). Continue harvesting until first frost (Oct 5). Rosemari can overwinter in mild climates for continued harvest.

Tanaman Pendamping

✅ Kacang✅ Wortel✅ Kubis

Rosemari 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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