As one of the flowering plants you should deadhead, cosmos respond very well to the removal of spent flowers. Deadheading in the garden isn't about letting your plants listen to the Grateful Dead.

Removing faded flowers stimulates more blooms on many plants. Deadhead flowers when they begin to wilt or fade. To deadhead effectively, remove the entire flowering portion, including any sepals or ...

It's easy to see why gardeners love cosmos. These delightful flowers burst with cheerful blooms in vibrant shades, from white to purple to pink. They're perfect in a meadow or English cottage garden, ...