Answer: Deadheading is simply snipping off the spent bloom so the plant won't start expending its energy on seed production. If there is just one flower per stalk, cut off the whole stalk. If the blossom stalk supports multiple flowers, you can cut off just flower head. This works very well for most annual flowers, which can bloom for much of the summer. For perennials, it can prolong the bloom season somewhat, but since most perennials have short seasons, it won't change the plant's natural period of bloom.
Q&A Library Searching Tips