When should I plant Thai Basil in Zone 1a?

Start Thai Basil seeds indoors around 4月13日. Transplant outdoors after 6月8日. Expect first harvest around 7月8日.

What is the last frost date for Zone 1a?

The average last spring frost date for Zone 1a is 5月25日. The first fall frost averages 8月28日, 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.

种植 Thai Basil 区域 1a

Zone 1a has harsh winters and a short growing season. Start Thai Basil early indoors to maximize your harvest window. 末次霜冻: 5月25日. 初次霜冻: 8月28日.

Planting Calendar

Indoor

Outdoor

Harvest

4月13日8月28日

Season: 5月25日 – 8月28日 (95 天) · Succession: plant every 3 weeks (up to 2x)

区域1a

末次霜冻5月25日

初次霜冻8月28日

生长季95 天

收获40 天

日照全日照

When to Plant Thai Basil in Zone 1a

Start Seeds Indoors: 4月13日

Start Thai Basil seeds indoors around 4月13日 (6 周(最后霜冻前)). Optimal germination temperature: 80F. Germinates in 5-10 days.

Transplant Outdoors: 6月8日

Transplant Thai Basil seedlings outdoors after 6月8日. Wait until soil temperature reaches 60F. Space plants at 4/m² (15cm 间距). Harden off plants for a week before moving outside.

Harvest: 7月8日

First harvest approximately 7月8日 (~30 天 from transplant). Continue harvesting until first frost (8月28日).

Thai Basil 其他区域

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

规划花园 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