West Coast Seeds - Siam Queen Thai Basil Seeds

Siam Queen is an authentic heirloom Thai basil native to Southeast Asia and prized for its distinctive spicy flavour with aromatic notes of anise and cinnamon. Vigorous and highly ornamental, the plants produce dark green leaves on striking purple stalks with flowers that open pink. Exceptionally productive in hot weather, Siam Queen is a fantastic culinary basil for bringing authentic flavour to Thai, Vietnamese, and other Southeast Asian dishes.

Why you’ll love it:

• Authentic heirloom Thai basil variety
• Distinctive spicy flavour with aromatic anise and cinnamon notes
• Excellent for soups, curries, stir-fries, and other Southeast Asian dishes
• Attractive dark green foliage with purple stems and pink flowers
• Vigorous and productive in hot summer weather
• Performs well in containers and greenhouses

Growing Information:

• Botanical Name: Ocimum basilicum var. thyrsiflora
• Plant Type: Annual herb
• Season: Warm season
• Light Requirements: Full sun
• Soil Requirements: Rich, loose, well-drained soil
• Germination: Approximately 5–10 days
• Optimal Germination Temperature: 21°C
• Plant Spacing: Thin to approximately 20–25 cm apart

Seed Details:

• Seed Type: Open pollinated
• Variety: Heirloom Thai basil
• Average Seeds Per Gram: Approximately 695
• Special Characteristics: Heat-loving, highly ornamental, container-friendly, and attractive to pollinators

Suggested Uses:
Start seeds indoors in late spring for transplanting once temperatures are consistently warm, or direct sow in early summer after the soil has warmed. Sow approximately 1 cm deep and provide plenty of warmth and bright light. Once plants reach about 15 cm tall, pinch the growing tips to encourage bushier growth. Harvest young shoots regularly and remove developing flower buds to extend leaf production. Use fresh in soups, curries, stir-fries, noodle dishes, and other Southeast Asian recipes.

Seed packet includes planting instructions. Results may vary based on growing conditions.