Dahlia (Dahlia spp.) flowers provide consistent bursts of color during the warm summer months. ... The flowers produce seeds after they begin to wilt, which detracts from the plant's beauty and may shorten the blooming season. Removing, or deadheading, the spent flowers ensures a healthy, continual bloom.
How do you keep dahlias blooming?
How to grow dahlias
- Moderately easy to grow.
- Flowers from summer through autumn.
- Not hardy so avoid freezing soil conditions.
- Tubers may need winter storage.
- Likes fertile, well-drained soil in sun.
- Deadhead to boost flowering.
- Increase your stocks by cutting and division or grow new plants from seed.
How do you prune Deadhead dahlias?
Dahlia deadheading is quick and easy. Simply remove the old flowers by snipping them from the stem, down to the nearest set of leaves. You can also pinch the flowers off, but be sure you make a clean pinch that doesn't leave a ragged, unsightly stem. Don't pull when you pinch or you may break the stem.