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Product Description
Enhance your garden with the vibrant beauty of Dianthus Barbatus Flower Seeds. These heirloom, non-GMO seeds produce clusters of colorful blooms that are perfect for flower beds, borders, and containers. Easy to grow and low-maintenance, Dianthus Barbatus is ideal for gardeners seeking a long-lasting display of bright, cheerful flowers.
Features & Benefits:
Produces clusters of colorful, fragrant blooms
Heirloom variety, non-GMO, safe for home gardening
Perfect for flower beds, borders, rock gardens, and containers
Long-lasting flowering period for extended enjoyment
Attracts pollinators like bees and butterflies naturally
Planting & Sowing Instructions:
Sowing Method: Start seeds indoors in seed trays or small pots, or sow directly outdoors in prepared soil
Soil Requirements: Well-draining soil
Sunlight: Full sun to partial shade (4–6 hours daily)
Temperature: Maintain soil at 18–22°C (65–72°F) for germination
Germination Time: 10–20 days depending on conditions
Transplanting: Transplant seedlings outdoors once strong and frost risk has passed
Spacing: Plant 20–30 cm apart for healthy growth
Watering: Keep soil evenly moist, avoiding waterlogging
Flowering Season: Typically blooms from late spring through summer depending on climate

Life Cycle
Biennial perennial
Planting Season
Cool season
Growth Habit
Upright clumping
Flavor Profile
Not edible
Plant Characteristics
Dense colorful clusters
Use
Garden borders
Growing Conditions
Sunny well-drained soils
Harvest Advantages
Long blooming
Plant Resistance
Cold tolerant
Scientific Name: Dianthus barbatus
Seed Names
Dianthus barbatus
Seed Type
Heirloom non-GMO
Dianthus barbatus, commonly known as Sweet William, is a classic heirloom flower admired for its dense clusters of brightly colored blooms. A favorite for cottage gardens and borders, this plant thrives in sunny locations and delivers vibrant seasonal color with reliable performance in home gardens.
Light Requirement
Full sun
Planting Depth
¼ inch
Sowing Method
Direct sowing
Plant Spacing
8–12 inches
Days to Maturity
90–120 days
Soil Preparation
Cold stratification
Hardiness Zones
USDA 3–9
Water Needs
Moderate moisture
Planting Season
Spring or fall
Seed Count
Recommended Coverage
100
Up to 25 sq ft
500
Up to 125 sq ft
1000
Up to 250 sq ft