When should I plant Thai Basil in Zone 4a?

Start Thai Basil seeds indoors around 24 مارس. Transplant outdoors after 19 مايو. Expect first harvest around 18 يونيو.

What is the last frost date for Zone 4a?

The average last spring frost date for Zone 4a is 5 مايو. The first fall frost averages 1 أكتوبر, giving a 149-day growing season.

Can I grow Thai Basil in Zone 4a?

Yes. Thai Basil needs 40 days to harvest. Zone 4a has a 149-day growing season, which is sufficient. You can plant up to 5 successions.

زراعة Thai Basil في المنطقة 4a

Zone 4a has cold winters and a moderate growing season. Timing is key for Thai Basil in this zone. آخر صقيع: 5 مايو. أول صقيع: 1 أكتوبر.

Planting Calendar

Indoor

Outdoor

Harvest

24 مارس1 أكتوبر

Season: 5 مايو – 1 أكتوبر (149 يوم) · Succession: plant every 3 weeks (up to 5x)

المنطقة4a

آخر صقيع5 مايو

أول صقيع1 أكتوبر

الموسم149 يوم

الحصاد40 يوم

الشمسشمس كاملة

When to Plant Thai Basil in Zone 4a

Start Seeds Indoors: 24 مارس

Start Thai Basil seeds indoors around 24 مارس (6 أسابيع قبل آخر صقيع). Optimal germination temperature: 80F. Germinates in 5-10 days.

Transplant Outdoors: 19 مايو

Transplant Thai Basil seedlings outdoors after 19 مايو. Wait until soil temperature reaches 60F. Space plants at 4/م² (15cm تباعد). Harden off plants for a week before moving outside.

Harvest: 18 يونيو

First harvest approximately 18 يونيو (~30 يوم from transplant). Continue harvesting until first frost (1 أكتوبر).

Thai Basil في مناطق أخرى

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

خطط حديقتك 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