As we settle into our summer garden maintenance routine, there are a few garden tasks that we do weekly. This time of year we are kept busy watering plants and deadheading the spent flowers. Many first-time volunteers are unfamiliar with the term ‘deadheading’ and I have the opportunity to show them something new.
So, what exactly is deadheading? Simply, it is the removal of dead flowers. By removing the dead flowers, the plant is tricked into producing more flowers; all the plant really wants to do is produce seeds to ensure the next generation of its kind. When we remove the flowers right before the plant begins to put energy into producing seeds, the plant instead puts energy into making more flowers for us to enjoy all summer long. As well, removing dead flowers keeps the plant looking tidier.
Deadheading does take a certain type of person though. As you can imagine, removing tiny flowers one-by-one from 4.5 acres of gardens is time consuming and having patience, an eye for details, and a strong back helps.
Most plants are deadheaded in the same basic way – cutting the flower back to the next live leaf is a good general rule. However, for pelargoniums, they do look better when done a certain way. For these plants, the entire flower plus the flower stalk must be removed. If only the flower is removed, the stalk will eventually die-back leaving an unsightly stick. And while it may only be one stick, over an entire section of planting of pelargoniums, these little ‘sticks’ will prominently catch a person’s eye. Removing the flower and stalk is easy enough – simply firmly hold the base of the stalk in one hand and then bend down the flower stalk. Pelargoniums also tend to have yellowing leaves underneath that will shrivel and fall to the ground. A good practice to help prevent disease and buildup of insects is to regularly clean these leaves up and compost them.
Other island plants that benefit from deadheading are Osteospermum, Arctotis, Penstemon, snapdragons, rose, Zinnia, Limonium, Calendula, Centranthus.