When should I plant Rosmarin in Zone 1a?

Start Rosmarin seeds indoors around Mar 16. Transplant outdoors after Jun 1. Expect first harvest around Aug 30.

What is the last frost date for Zone 1a?

The average last spring frost date for Zone 1a is May 25. The first fall frost averages Aug 28, giving a 95-day growing season.

Can I grow Rosmarin in Zone 1a?

Yes. Rosmarin needs 90 days to harvest. Zone 1a has a 95-day growing season, which is sufficient.

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🌿 Growing Rosmarin in Zone 1a

Zone 1a has harsh winters and a short growing season. Start Rosmarin early indoors to maximize your harvest window. Siste frost: May 25. Første frost: Aug 28.

Planting Calendar

Indoor

Outdoor

Harvest

Mar 16Aug 28

Season: May 25 – Aug 28 (95 dager)

Sone1a

Siste frostMay 25

Første frostAug 28

Sesong95 dager

Høst90 dager

SolFull Sol

When to Plant Rosmarin in Zone 1a

Start Seeds Indoors: Mar 16

Start Rosmarin seeds indoors around Mar 16 (10 uker før siste frost). Optimal germination temperature: 70F. Germinates in 14-28 days.

Transplant Outdoors: Jun 1

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

Harvest: Aug 30

First harvest approximately Aug 30 (~90 dager from transplant). Continue harvesting until first frost (Aug 28). 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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