Horticultural aide memoire No. 37: Deadhead dahlias
The dahlia is a galumphing plant that makes frequent demands upon the gardener. Fortunately, they are all simple. One regular activity, a pleasant way of whiling away half an hour in the early evening, is deadheading. Cast your eyes over the plant and note those flowers that have faded. If you can’t decide, off it comes. Remove the flower neatly with secateurs, if necessary following the shoot back to a junction in order to neaten things up. Do this each day and your reward will be an indefinite supply of fresh blooms. The discarded material goes on the compost heap.