Thai Basil illustration

Thai Basil Growing Guide

Lamiaceae family

Days to Harvest40 days
SunlightFull Sun
Frost ToleranceNone
Spacing4/sqft (6" apart)
Germination5-10 days
HardinessTender
Germ. Temp80°F
Start Indoors6 weeks before last frost

Growth Stages

  1. Seedling
  2. Establishing
  3. Mature / Harvest Ready

Planting Dates by Zone

Zone 1aZone 1bZone 2aZone 2bZone 3aZone 3bZone 4aZone 4bZone 5aZone 5bZone 6aZone 6bZone 7aZone 7bZone 8aZone 8bZone 9aZone 9bZone 10aZone 10bZone 11aZone 11bZone 12aZone 12bZone 13aZone 13b

Frequently Asked Questions

How long does it take to grow Thai Basil?

Thai Basil takes approximately 40 days from planting to harvest.

How much sun does Thai Basil need?

Thai Basil requires full sun (6+ hours direct sunlight per day).

How far apart should I plant Thai Basil?

Plant Thai Basil at 4/sqft (6" apart) using square foot gardening spacing.

Can Thai Basil survive frost?

Thai Basil is frost-sensitive and should not be exposed to frost.

How long does Thai Basil take to germinate?

Thai Basil seeds germinate in 5-10 days at an optimal temperature of 80°F.

When should I start Thai Basil seeds indoors?

Start Thai Basil seeds indoors 6 weeks before your last frost date, then transplant 2 weeks after last frost.

Plan Your Thai Basil Garden

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

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