growing tomatoes my way
Best of Gardeners Tips
Dahlias are not the first flower you think about when looking for container plants. The large flowers from tuberous roots are very thirsty, very hungry and can grow 4-6 feet tall. So I would leave the dinner plate varieties alone unless you have an enormous pot or barrel.
Annual Dahlias may be the answer and there are many colourful mixes available to grow from seed. Mostly they are single flowered annuals and are less fussy than the larger varieties.
If you want to try larger flowered varieties, preferrably in their own space with lots of compost and mulch the Thompson Morgan have a selection.
Enjoy growing Dahlias and let us know how you get on with containers. Read about Cactus flowering Dahlias.