Dahlias are they worth planting in a smaller garden? The problem being you have to lift the tubers at the end of the year and store in a frost free, cool dark place. Great if you have a frost free, cool, dark place for a large bucket of tubers to sit for 4 months of the year, a problem to store them if you don’t.
The second problem with dahlias is ‘over-breeding’. The flower heads can get so large (and heavy) they droop, the stems can’t support them and so they need staking and then you have to deadhead, battle earwigs who eat the flowers and on top of that all bar a few are so full of petals – bees can’t get in to feed.
If you buy a dahlia, then choose ones with open flowers that will support themselves and feed the bees!
We haven’t used Dahlias in any of our small garden designs – but we do use lots of other plants that are much better (we think).
Why don’t you take a look