Siam Queen Thai Basil (Ocimum thyrsiflora) Herb & Flower Seeds

Siam Queen Thai Basil Seeds offer a flavorful and aromatic herb that’s essential in Southeast Asian cooking. This popular basil variety is prized for its glossy green leaves, purple stems, and fragrant flower spikes.

Known for its spicy-sweet, anise-like flavor with hints of cloves, Siam Queen Thai Basil is ideal for curries, stir-fries, soups, and fresh garnishes. It also blooms beautiful purple flower spikes that attract bees and butterflies, making it a dual-purpose culinary and ornamental plant.

This basil variety is heat-tolerant, fast-growing, and easy to care for, making it perfect for home gardens, patio containers, or sunny windowsills. Enjoy a season-long harvest of fresh herbs for cooking while supporting your local pollinators.

Features

• Distinct spicy-sweet flavor with hints of anise and cloves
• Produces glossy green leaves and purple flowers
• Excellent for Thai dishes, curries, and stir-fries
• Attracts bees and beneficial pollinators
• Fast-growing, heat-tolerant, and easy to maintain
• Non-GMO, heirloom seeds with high germination rate
• Suitable for containers, herb gardens, and raised beds

Specifications

• Seed Type: Siam Queen Thai Basil (Ocimum thyrsiflora)
• Common Name: Thai Basil
• Plant Type: Annual Herb
• Plant Height: 18 – 24 inches
• Zones: USDA Zones 4–11 (grown as annual everywhere)
• Light Requirement: Full Sun
• Soil Type: Well-drained, moderately fertile soil
• Germination Time: 5 – 14 days
• Days to Harvest: 60 – 70 days
• GMO Status: Non-GMO
• Season: Spring/Summer planting
• Planting Depth: Surface sow or cover lightly (1/8 inch)
• Spacing: 10 – 12 inches apart
• Optimal Temperature: 70°F to 85°F (21°C to 29°C)
• Watering: Moderate, avoid waterlogging
• Companion Plants: Tomatoes, peppers, marigold, oregano
• Bloom Time: Summer
• Wildlife Support: Pollinator-friendly; attracts bees and butterflies
• Culinary Use: Stir-fries, pho, curries, teas, garnishes
• Storage: Store unused seeds in a cool, dry place until planting

Planting Guide

• Start Indoors: Begin seeds indoors 4–6 weeks before last frost.
• Transplanting: Move to garden once temperatures reach 70°F or warmer.
• Soil Prep: Plant in loose, well-drained soil enriched with compost.
• Care: Pinch tops regularly to encourage branching and leaf production.
• Harvest: Begin harvesting leaves when plants are 6–8 inches tall; continue throughout the season.