Dahlias are a standout addition to any summer garden, offering striking beauty and vivid colors that captivate throughout the season. These flowers bloom abundantly from midsummer to fall, providing a continuous display of their unique petals. What's more, open-pollinated dahlia seeds offer the opportunity to grow new varieties with distinct characteristics and surprises.
Dahlia Seeds
Plant type: Annual / Tender Perennial
Planting Season: Spring (after last frost) / Summer
Sun/shade: Full sun
Days to flower: 90 - 100 days
Vase life: 4-9 days
Spacing: 45 - 60 cm
Height: 80 - 120 cm
Seeds per packet: 80
Planting: Start indoors on a wet cloth (see our blog for more details). Transplant started seed into germination mix and keep moist. Plants can then be transplanted into the garden at 10 cm high. Can direct sow in summer when all danger of frost has passed.
Pro Tip: Pinch out plant when 10 cm high to get more blooms.