10 Seeds Leucas aspera (Thumbai) Herb Plant

Thumbai, also known as Leucas aspera, is a traditional herbaceous plant valued for its upright, branching growth habit and small, white, tubular flowers that appear in whorls along the stems. This hardy annual thrives in warm climates and adds a simple, natural charm to herb gardens, borders, or container plantings, making it a distinctive choice for gardeners seeking uncommon botanical interest.
This herb is primarily grown for its ornamental appeal and traditional culinary or cultural uses in certain regions, where the tender leaves and shoots may be used as a leafy green. It exhibits a vigorous, self-seeding nature and performs best in well-drained soil with full sun to partial shade, requiring minimal care once established. Space plants about 12 inches apart to allow for their bushy, upright growth, and enjoy the subtle texture they bring to garden beds or pots.
Species: Leucas aspera
Variety: Thumbai
Type: Herb
Plant_Habit: Upright, branched annual
Sun: Full sun to partial shade
Soil: Well-drained, sandy or loamy
Days_to_Harvest: 60-75 days (for leaf harvest)
Zones: Annual in all zones (tropical perennial in zones 10-11)
Germination: 7-21 days at 70-85°F
Sowing: Sow seeds on soil surface, press lightly, keep moist
Spacing: 12 inches apart
Notes: Self-seeds readily; tolerates poor soil