Give them a good start: I prepare individual planting holes for my dahlias, working in weed-free soil improver.
After planting, I find it works well if you leave the plants in a shallow depression to collect water.
Get stakes in place in good time – once a dahlia falls over, it’s impossible to make it look natural again.
Mulching with more weed-free soil improver helps to retain moisture and to suppress weeds.
Remove the first flower stem to promote better branching – and get more flowers in the long run.
Cut the flowers for the house or deadhead regularly. This is crucial if you want to encourage better flowering.
Cut or deadhead religiously
Staking is vital and should be done sooner, not later