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Product Description
Add a splash of brilliant color to your garden with Centranthus Ruber Flower seeds. Known for their clusters of bright blooms and long flowering season, these heirloom, non-GMO seeds are a perfect choice for home gardeners. Easy to grow and highly adaptable, Centranthus Ruber thrives in borders, cottage gardens, and containers, creating a vibrant display that attracts butterflies and pollinators.
Features & Specifications:
Variety: Centranthus Ruber – Bright Blooms
Seed Type: Heirloom, non-GMO
Germination Rate: High, suitable for home planting
Plant Height: 60–90 cm (24–36 inches)
Flowering Season: Late spring to autumn
Light Requirements: Full sun to partial shade
Ideal For: Borders, cottage gardens, containers, and pollinator-friendly displays
Planting & Sowing Instructions:
Sowing: Sow seeds directly outdoors in well-drained soil or start indoors in trays. Lightly cover with soil (about 3 mm).
Watering: Keep soil lightly moist during germination, but avoid overwatering.
Temperature: Best germination occurs at 18–22°C (65–72°F).
Germination Time: Seeds usually sprout within 14–21 days.
Transplanting: Thin or transplant seedlings once they reach 5–7 cm tall, spacing 30–40 cm apart.
Care: Low maintenance; deadhead spent blooms to encourage continuous flowering. Drought tolerant once established.

Life Cycle
Perennial Flower Plant
Planting Season
Spring Early Autumn
Growth Habit
Upright Bushy Growth
Flavor Profile
Non Edible Ornamental
Plant Characteristics
Bright Red Clusters
Use
Borders Cottage Gardens
Growing Conditions
Dry Sunny Climate
Harvest Advantages
Long Bloom Season
Plant Resistance
Drought Heat Tolerant
Scientific Name: Centranthus ruber
Seed Names
Centranthus Ruber Seeds
Seed Type
Heirloom Open Pollinated
Centranthus Ruber, commonly known as Red Valerian, is a vibrant flowering perennial admired for its clusters of bright red to pink blossoms. This easy-to-grow plant thrives in sunny locations and well-drained soil, often blooming for extended periods throughout the season. Popular in cottage gardens and borders, Centranthus adds continuous color and attracts pollinators like bees and butterflies.
Light Requirement
Full Sun Partial Shade
Planting Depth
Surface Light Cover
Sowing Method
Direct Sow Outdoors
Plant Spacing
12–15 Inches Apart
Days to Maturity
80–100 Days
Soil Preparation
No Pretreatment Needed
Hardiness Zones
USDA Zones 5–9
Water Needs
Low Moderate Water
Planting Season
Spring Early Autumn
Seed Count
Recommended Coverage
100
Up to 10 sq ft
500
Up to 50 sq ft
1000
Up to 100 sq ft