When should I plant Rosmarin in Zone 10a?

Start Rosmarin seeds indoors around Dec 12. Transplant outdoors after Feb 27. Expect first harvest around May 28.

What is the last frost date for Zone 10a?

The average last spring frost date for Zone 10a is Feb 20. The first fall frost averages Dec 1, giving a 284-day growing season.

Can I grow Rosmarin in Zone 10a?

Yes. Rosmarin needs 90 days to harvest. Zone 10a has a 284-day growing season, which is sufficient.

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🌿 Growing Rosmarin in Zone 10a

Zone 10a has a year-round growing season. Rosmarin can be planted almost any time with proper planning. Siste frost: Feb 20. Første frost: Dec 1.

Planting Calendar

Indoor

Outdoor

Harvest

Dec 12Dec 1

Season: Feb 20 – Dec 1 (284 dager)

Sone10a

Siste frostFeb 20

Første frostDec 1

Sesong284 dager

Høst90 dager

SolFull Sol

When to Plant Rosmarin in Zone 10a

Start Seeds Indoors: Dec 12

Start Rosmarin seeds indoors around Dec 12 (10 uker før siste frost). Optimal germination temperature: 70F. Germinates in 14-28 days.

Transplant Outdoors: Feb 27

Transplant Rosmarin seedlings outdoors after Feb 27. Wait until soil temperature reaches 55F. Space plants at 1/m² (30cm avstand). Harden off plants for a week before moving outside.

Harvest: May 28

First harvest approximately May 28 (~90 dager from transplant). Continue harvesting until first frost (Dec 1). Rosmarin can overwinter in mild climates for continued harvest.

Samdyrking

✅ Bønner✅ Gulrøtter✅ 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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