Dahlia seeds — bold, long-flowering colour from seed
Dahlias from seed are a quick, affordable way to enjoy these flamboyant summer flowers — bedding and single-flowered types bloom from seed in their first year, flowering right up to the frosts and beloved by bees. They sit within our flower seed range. New to flowers? Our flower growing guide covers the basics.
Dahlias need an early, frost-free start — the calendar shows when to sow.
Colour till the frosts
Seed-raised bedding dahlias flower for months and are superb in borders, pots and the vase — great for our cut-flower patch — while their open, single flowers are excellent for pollinators. At the end of the season you can even lift and store the little tubers they form.
Growing dahlias from seed
Sow indoors in warmth in early spring, grow on and harden off, then plant out after the last frost in a sunny, fertile spot. Deadhead regularly for a long, generous display, and stake the taller types.
Building a cutting patch? Here's where to look next.
Popular flower categories: Cut Flowers · Pollinator Flowers · Container Flowers · Bee-Friendly Flowers · All Flower Seeds
At SeedsChoice, every order ships from Meppel, NL with fast, tracked EU delivery.
Frequently Asked Questions
Can you grow dahlias from seed?
Yes — bedding and single-flowered types flower in their first year from an early sowing.
When do I sow them?
Indoors in warmth in early spring, to plant out after the last frost.
Are they good for cutting?
Yes — they flower for months and are lovely in the vase.
Are they good for pollinators?
The open, single-flowered types are excellent for bees.
Can I keep them?
Yes — lift and store the small tubers they form at the end of the season.