When should I plant Rosmarin in Zone 10b?

Start Rosmarin seeds indoors around Nov 19. Transplant outdoors after Feb 4. Expect first harvest around May 5.

What is the last frost date for Zone 10b?

The average last spring frost date for Zone 10b is Jan 28. The first fall frost averages Dec 22, giving a 328-day growing season.

Can I grow Rosmarin in Zone 10b?

Yes. Rosmarin needs 90 days to harvest. Zone 10b has a 328-day growing season, which is sufficient.

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🌿 Growing Rosmarin in Zone 10b

Zone 10b has a year-round growing season. Rosmarin can be planted almost any time with proper planning. Sista frost: Jan 28. Första frost: Dec 22.

Planting Calendar

Indoor

Outdoor

Harvest

Nov 19Dec 22

Season: Jan 28 – Dec 22 (328 dagar)

Zon10b

Sista frostJan 28

Första frostDec 22

Säsong328 dagar

Skörd90 dagar

SolFull Sol

When to Plant Rosmarin in Zone 10b

Start Seeds Indoors: Nov 19

Start Rosmarin seeds indoors around Nov 19 (10 veckor före sista frosten). Optimal germination temperature: 70F. Germinates in 14-28 days.

Transplant Outdoors: Feb 4

Transplant Rosmarin seedlings outdoors after Feb 4. Wait until soil temperature reaches 55F. Space plants at 1/m² (30cm avstånd). Harden off plants for a week before moving outside.

Harvest: May 5

First harvest approximately May 5 (~90 dagar from transplant). Continue harvesting until first frost (Dec 22). Rosmarin can overwinter in mild climates for continued harvest.

Samplantering

✅ Bönor✅ Morötter✅ Kål

Rosmarin 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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