Blue Star Sea Holly Seeds - Flower Plant

Blue Star Sea Holly Seeds produce perennial flowering plants known for their spiky, metallic blue flowers and silvery foliage. These hardy, drought tolerant plants thrive in full sun and well drained soils. Suitable for garden borders, rock gardens, and container planting, they attract pollinators and add architectural interest to ornamental landscapes.

Features

• Perennial flowering plant with spiky blue flowers

• Drought tolerant and hardy

• Suitable for garden borders, rock gardens, and containers

• Attracts pollinators such as bees and butterflies

• Provides unique architectural interest in gardens

Specifications

• Scientific Name: Eryngium planum

• Common Name (US): Blue Star Sea Holly

• Seed Type / Variety: Ornamental blue flowering variety

• Growth Habit: Upright perennial flowering plant

• USDA Zones: 4–9

• Planting Season: Spring

• Growing Season: Late spring through fall

• Sowing Season: February–April indoors; transplant after frost

• Germination Time and Conditions: 14–21 days; light, well drained soil at 65–70°F

• Sunlight Requirements: Full sun

• Soil Requirements: Well drained moderately fertile soil

• Watering Needs: Low to moderate; drought tolerant once established

• Mature Plant Size: 18–36 inches height; 12–18 inches spread

• Plant Spacing: 12–18 inches apart