Annual Vinca Seeds - Flower Plant

Annual vinca is a warm-season flowering plant with a compact to spreading growth habit and glossy green foliage. It is commonly grown as a seasonal annual and performs reliably in hot, humid, and dry summer conditions. Plants establish steadily from seed and are well suited to garden beds, borders, containers, and mass plantings. Annual vinca prefers sunny locations, good air circulation, and well-drained soil and maintains consistent growth throughout the warm growing season.

Features

• Warm-season annual with compact to spreading growth

• Well adapted to hot and humid climates

• Suitable for garden beds, borders, containers, and mass planting

• Performs well in well-drained soils

• Maintains steady growth during warm weather

Specifications

• Scientific Name: Catharanthus roseus

• Common Name (US): Vinca

• Seed Type / Variety: Annual

• Growth Habit: Annual flowering plant

• USDA Zones: 9 to 11 (grown as annual in cooler zones)

• Planting Season: Spring

• Growing Season: Warm season

• Sowing Season: Spring after last frost

• Sowing Months: March to May

• Germination Time and Conditions: 7 to 14 days; warm soil temperatures and evenly moist soil required

• Sunlight Requirements: Full sun to partial shade

• Soil Requirements: Well-drained loamy or sandy soil

• Watering Needs: Low to moderate; allow soil surface to dry slightly between watering

• Mature Plant Size: 10 to 18 inches tall, 10 to 18 inches spread

• Plant Spacing: 10 to 12 inches between plants