Thai Basil – Siam Queen

Ocimum basilicum – Thai Siam Queen

• Growing Temp 70°F – 90°F

• Days to Maturity 70-90 days

Ease of Cultivation and Culinary Use: Thai Basil Siam Queen is a popular herb known for its unique, aromatic flavor, which combines sweet and spicy notes. It is relatively easy to grow, thriving in warm weather and well-drained soil. This variety is widely used in Thai and Southeast Asian cuisines, particularly in stir-fries, curries, and salads, where it adds a distinct fragrance and flavor to dishes.

Direct Sowing: For direct sowing, plant Thai Basil seeds outdoors after the last frost when the soil temperature is consistently above 70°F. Sow the seeds about ¼ inch deep and space them 12-18 inches apart in rows that are 18-24 inches apart. Germination usually occurs within 7–14 days, so keep the soil consistently moist but not waterlogged during this period. Thai Basil prefers full sun and will thrive in warm, sunny conditions.

Early Sowing for Seedlings: To start early, sow Thai Basil seeds indoors 6–8 weeks before the last expected frost. Use seedling trays filled with a quality potting mix, lightly covering the seeds with soil. Maintain a temperature of 70–75°F for optimal germination. Once the seedlings have developed several true leaves and the danger of frost has passed, transplant them outdoors, ensuring proper spacing to allow for healthy growth and air circulation.

Harvesting: To determine when Thai Basil Siam Queen is ready for harvest, look for lush plants with vibrant green leaves, typically within 70-90 days of sowing. You can begin harvesting the leaves when the plants are at least 6 inches tall. The best time to harvest is just before flowering when the leaves are most flavorful. Regular pruning of the leaves will encourage bushier growth and provide a steady supply of fresh basil throughout the growing season.