When should I plant Thai Basil in Zone 1a?

Start Thai Basil seeds indoors around Apr 13. Transplant outdoors after Jun 8. Expect first harvest around Jul 8.

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 Thai Basil in Zone 1a?

Yes. Thai Basil needs 40 days to harvest. Zone 1a has a 95-day growing season, which is sufficient. You can plant up to 2 successions.

Growing Thai Basil in Zone 1a

Zone 1a has harsh winters and a short growing season. Start Thai Basil early indoors to maximize your harvest window. Zadnja slana: May 25. Prva slana: Aug 28.

Planting Calendar

Indoor

Outdoor

Harvest

Apr 13Aug 28

Season: May 25 – Aug 28 (95 dni) · Succession: plant every 3 weeks (up to 2x)

Cona1a

Zadnja slanaMay 25

Prva slanaAug 28

Sezona95 dni

Žetev40 dni

SoncePolno Sonce

When to Plant Thai Basil in Zone 1a

Start Seeds Indoors: Apr 13

Start Thai Basil seeds indoors around Apr 13 (6 tednov pred zadnjo zmrzaljo). Optimal germination temperature: 80F. Germinates in 5-10 days.

Transplant Outdoors: Jun 8

Transplant Thai Basil seedlings outdoors after Jun 8. Wait until soil temperature reaches 60F. Space plants at 4/m² (15cm narazen). Harden off plants for a week before moving outside.

Harvest: Jul 8

First harvest approximately Jul 8 (~30 dni from transplant). Continue harvesting until first frost (Aug 28).

Thai Basil 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

Plan Your Garden Thai Basil

Track Thai Basil from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.

Start Free Thai Basil Growing Guide