A picture of a Thai Basil

Thai Basil

Ocimum basilicum var. thyrsiflora

Also known as

Horapha, Anise Basil, Licorice Basil , Basiliekruid (Afr.)

Full Sun
Easy care
Moderate watering
Tender

13b

USDA zone

18°C

Minimum temperature

Expected size

Height
Spread

45cm

Max

45cm

20cm

Min

20cm

Flowering

  • spring
  • summer
  • autumn
  • winter

This plant has a mild fragrance

Thai Basil Overview

Thai basil is a variant of sweet basil. Thai basil leaves are a frequent ingredient in Thai green and red curries and raw leaves are often served as an accompaniment to many Vietnamese dishes. Thai basil is a tender perennial, but is typically grown as an annual in most herb gardens.

Common problems with Thai Basil

Susceptible to powdery mildew and aphids, promote good airflow around the plants and encourage predatory insects like lady bugs.

Thai Basil Companion Plants

How to harvest Thai Basil

Harvest leaves and shoots often, but do not defoliate the plants, pinch out the flowers to prevent the leaves becoming bitter.

How to propagate Thai Basil

Seed

Sow seed in spring. Germination takes 10-15 days. Replant to garden or pots as soon as they are big enough to handle.

Cuttings

Take semi-ripe cuttings in summer, root in light seedling mix or in a glass of water.

Special features of Thai Basil

Pot plant

Provide a sunny position, well-draining potting medium and increase watering frequency the smaller the pot.

Attracts useful insects

Attracts bees when in flower.

Repels harmful insects

Basil repels tomato, potato and other vegetable pests!

Other uses of Thai Basil

Culinary

Ingredient in Thai and Vietnamese dishes.

Medicinal