10+
Dark Opal basil seeds grow into aromatic annual plants with deep purple foliage and a compact, bushy growth habit. This basil type is well suited to warm and temperate climates and adapts easily to garden beds, raised beds, and container growing. Plants establish readily from seed and perform well with consistent moisture, regular harvesting, and adequate sunlight, making them suitable for home herb gardens and small-space cultivation.
Features
-
Aromatic annual herb with compact, bushy growth
-
Distinctive dark purple foliage
-
Suitable for garden beds, raised beds, and containers
-
Adaptable to warm and temperate climates
-
Suitable for home herb gardens
Specifications
-
Scientific name: Ocimum basilicum
-
Common name (US): Basil
-
Seed type / variety: Dark Opal
-
Growth habit: Bushy annual herb
-
USDA hardiness zones: 4 to 11 as an annual
-
Planting season: Spring to summer
-
Sowing season:
-
Indoors: March to April
-
Outdoors: April to June
-
-
Germination time and conditions: 5 to 10 days; warm soil with consistent moisture
-
Sunlight requirements: Full sun to partial sun
-
Soil requirements: Well drained, fertile soil
-
Watering needs: Regular watering; maintain evenly moist soil
-
Mature plant size: 12 to 18 inches tall, 10 to 14 inches spread
-
Plant spacing: 8 to 12 inches apart
