Thai Basil illustration

Growing Thai Basil in Zone 3b

Zone 3b has harsh winters and a short growing season. Start Thai Basil early indoors to maximize your harvest window. Fros terakhir: May 15. Fros pertama: Sep 22.

Planting Calendar

Indoor
Outdoor
Harvest
Apr 3Sep 22

Season: May 15 – Sep 22 (130 hari) · Succession: plant every 3 weeks (up to 4x)

Zon3b
Fros terakhirMay 15
Fros pertamaSep 22
Musim130 hari
Tuaian40 hari
MatahariMatahari Penuh

When to Plant Thai Basil in Zone 3b

Start Seeds Indoors: Apr 3

Start Thai Basil seeds indoors around Apr 3 (6 minggu sebelum fros terakhir). Optimal germination temperature: 80F. Germinates in 5-10 days.

Transplant Outdoors: May 29

Transplant Thai Basil seedlings outdoors after May 29. Wait until soil temperature reaches 60F. Space plants at 4/m² (15cm jarak). Harden off plants for a week before moving outside.

Harvest: Jun 28

First harvest approximately Jun 28 (~30 hari from transplant). Continue harvesting until first frost (Sep 22).

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