Ocimum Basilicum Var. Thyrsiflora (Thai Basil)
Ocimum Basilicum Var. Thyrsiflora (Thai Basil)
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Ocimum Basilicum Var. Thyrsiflora (Thai Basil) is a highly aromatic culinary herb prized for its vibrant green leaves, distinctive purple stems, and delightful anise-like fragrance. Its narrow, pointed foliage offers a sweet, slightly spicy flavour with hints of liquorice, making it a popular ingredient in Thai, Vietnamese, and other Southeast Asian cuisines. During the warmer months, attractive purple flower spikes emerge, adding ornamental appeal while attracting bees and other beneficial pollinators.
This fast-growing herb is ideal for kitchen gardens, herb beds, raised planters, and containers. It thrives in warm, sunny conditions and fertile, well-drained soil, producing an abundant supply of fragrant leaves throughout the growing season. Regular harvesting encourages compact, bushy growth and helps maintain tender, flavourful foliage, making it an excellent choice for home gardeners and cooking enthusiasts.

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Mature height
0.3–0.6 metres
Mature width
0.3–0.5 metres
Spacing
0.25–0.3 metres
Evergreen/Deciduous
Annual herb, short-lived perennial in frost-free climates
Foliage
Bright green with purple stems
Flowering Period & Fruit Development/Harvest
Summer to autumn
Sun tolerance
Full sun to part shade
Maintenance
Low to moderate; water regularly, pinch growing tips and harvest frequently
Root System
Shallow, fibrous roots; prefers fertile, well-drained soil