Stock is now low for 2024. Order soon to secure your tubers for delivery late-Feb through mid-April 2024

Shaw Green Dahlias
UK Based Stock
UK Based Stock
Organically Grown
Organically Grown
Bee & Insect Friendly
Bee & Insect Friendly
Recyclable Packaging
Recyclable Packaging
Safe & Secure Delivery
Safe & Secure Delivery
Order All Year
Order All Year

Dahlia Seed Germination Guide

Dahlia seeds are a very cheap way of producing masses of dahlias. Many are cross-pollinated so you will get an amazing array of colours throughout the year.

Sow in late Winter or early Spring in a greenhouse or propagator. We recommend sowing individually in pots or cell trays for best results.

Start as early as you can to ensure longer flowering during the mid-late Summer months.

Young plants are ready to plant outdoors in late May or as soon as the nights are warmer to flower this year.


Fill a pot or seed tray with moist compost and lightly firm the surface. Gently push your dahlia seeds into the compost. Don’t forget to label them! Cover them if you think mice or squirrels will get them.

If the temperature is right seedlings will germinate within a couple of weeks.

If you have sown the seeds into trays, now is the time to pot on into larger pots – we use 9cm square pots.

Now is the time to harden them off by keeping them outdoors during the day and brining them in at night for a few weeks.

Once the risk of frost has passed and most of the April & May showers have passed, you can plant them into their final positions.

Don’t be tempted to plant out too early, small plants are susceptible to frost and wet conditions along with slugs and mice


Don’t forget you can collect your own seeds in Autumn and store them over Winter for planting the next year.