Siam Queen Basil Seeds

Ocimum basilicum Siam Queen Basil

Ocimum basilicum Siam Queen Basil is an award-winning, tropical annual herb, valued for its lush, bushy habit and intense, spicy-sweet aroma. Growing to about 12 to 24 inches tall with a spread of 10 to 12 inches, this variety is an All-America Selections winner, perfect for edible landscapes, patio containers, and herb gardens where visual drama is as important as flavor. Unlike standard Thai basil which can become leggy, Siam Queen is bred to be compact and sturdy, producing massive, dense heads of deep purple flowers that stand out strikingly against the green foliage, providing a showstopping display late into the season.

Culinary and Practical Uses

• The sturdy, aromatic leaves are essential for authentic Thai, Vietnamese, and Cambodian cuisine, imparting a bold licorice and clove punch that holds up well in high-heat curries and stir-fries.
• The large, vibrant purple flower heads are edible and make a spectacular garnish for cocktails, salads, and plating, offering a milder version of the leaf’s anise flavor.
• Traditionally used to infuse oils and vinegars or as a high-contrast bedding plant in ornamental flower gardens due to its decorative nature.

Characteristics

• Foliage: Large, bright green, lance-shaped leaves on thick, square purple stems; emits a powerful, pungent anise-licorice scent when brushed against.
• Growth Habit: Distinctly upright, bushy, and well-branched with a more uniform shape than wild Thai basil; sturdy stems make it highly resistant to wind and rain.
• Flowers: Produces large, dense, terminal clusters (inflorescences) of deep violet-purple blooms in late summer, which are far showier than common basil flowers and highly attractive to bees.
• Seeds: Harvested after the purple flower heads dry and turn brown; the small black seeds are easily collected and saved, though the plant is best started fresh in warm soil.

Growing Requirements

• Sun: Thrives in full sun; requires at least 6 to 8 hours of direct sunlight to develop the deep purple stem color and concentrated essential oils.
• Soil: Adapts to most soil types but prefers rich, fertile, well-draining soil with a pH between 6.0 and 7.5.
• Water: Requires moderate watering; keep the soil consistently moist but not waterlogged, as it loves heat and humidity but dislikes "wet feet."
• Spacing: Plant seeds or transplants 10 to 12 inches apart to allow for airflow while maintaining a dense, bushy appearance.
• Maintenance: Harvest leaves frequently for the kitchen; while the flowers are beautiful, pinching them off early in the season encourages more leaf production, though many gardeners let Siam Queen bloom for its ornamental value.

Shipping Info

Siam Queen Basil seeds ship as fresh, high-quality, viable seeds that are carefully packaged for stability and protection from damage during transit. Prompt shipping supports reliable germination and seasonally appropriate planting.