Blue Spice basil (Ocimum basilicum var. blue spice) is a fragrant and visually striking variety of basil known for its unique blend of spicy, vanilla-like aroma and ornamental appeal. This annual herb belongs to the Lamiaceae family and is a favorite among gardeners and chefs for its dual-purpose as a culinary herb and decorative plant. Originating from tropical regions, Blue Spice Basil brings an exotic flavor and beauty to gardens, pots, and dishes alike.
Blue Spice Basil is a hybrid variety believed to have originated from the crossbreeding of traditional basil species. Its unique aroma and appearance have made it a popular choice for gardeners seeking both culinary versatility and ornamental value. While it shares the tropical roots of other basil varieties, it has been adapted for cultivation in diverse climates, gaining popularity worldwide.
Blue Spice Basil is a fast-growing annual herb that can reach a height of 45-60 cm (18-24 inches). The plant features small, green to slightly purple leaves with a velvety texture and a strikingly aromatic profile. Its flowers, which bloom in spikes during the summer, range from pale lavender to deep purple, adding visual appeal. The plant’s distinctive scent is a complex blend of sweet vanilla, clove, and anise, setting it apart from traditional basil varieties.
Sowing: Sow seeds indoors 6–8 weeks before the last frost or directly outdoors once the soil temperature exceeds 18°C (65°F). Plant seeds 0.5 cm (1/4 inch) deep and thin seedlings to 20–30 cm (8–12 inches) apart when they are 5–7 cm (2–3 inches) tall.
Soil: Prefers rich, well-draining soil with a slightly acidic to neutral pH (6.0–7.0). Incorporate compost or organic matter to enhance fertility and water retention.
Watering: Requires regular watering to keep the soil consistently moist but not waterlogged. Avoid overhead watering to reduce the risk of fungal diseases.
Care: Plant in full sun for optimal growth and flavor. Pinch back the tips of young plants to encourage bushy growth and prevent early flowering. Remove flower buds as they appear to prolong leaf production and enhance flavor.
Harvesting: Begin harvesting leaves when the plant reaches about 15–20 cm (6–8 inches) tall. Regularly snip leaves and stems, avoiding more than one-third of the plant at a time to ensure continued growth. Use fresh or dry for culinary and herbal purposes. Frequent harvesting encourages new growth and maintains the plant's vigor.
Blue Spice Basil is a versatile herb widely used in both culinary and ornamental applications. In the kitchen, its aromatic leaves add a unique flavor to desserts, teas, salads, and savory dishes, particularly those with an exotic or fusion theme. The plant’s flowers are also edible, making them an attractive garnish for various dishes. Beyond its culinary uses, Blue Spice Basil is valued for its ornamental qualities and ability to attract pollinators, such as bees and butterflies, to the garden.