10+
Shirley poppy is a cool-season flowering plant with an upright and delicate growth habit. It adapts well to temperate climates and performs best in full sun with well-drained soil. This variety establishes directly from seed and is suitable for garden beds, borders, and naturalized planting areas. It prefers cooler growing conditions and minimal root disturbance, supporting steady development throughout the season.
Features
- Cool-season flowering plant with upright, delicate growth
- Suitable for beds, borders, and naturalized areas
- Performs well in full sun environments
- Prefers direct sowing with minimal disturbance
- Adaptable to well-drained soil conditions
Specifications
- Scientific Name: Papaver rhoeas
- Common Name (US): Poppy
- Seed Type / Variety: Shirley Variety
- Growth Habit: Upright flowering plant
- USDA Zones: 3-9
- Planting Season: Early spring or fall
- Growing Season: Cool season
- Sowing Season: February to March and September to November
- Germination Time and Conditions: 10-20 days at 15-20°C; prefers direct sowing
- Sunlight Requirements: Full sun
- Soil Requirements: Well-drained, light to moderately fertile soil
- Watering Needs: Low to moderate; avoid overwatering
- Mature Plant Size: 45-75 cm height, 20-30 cm spread
- Plant Spacing: 20-30 cm between plants
