How Long Do Celosia Blooms Last. Deadheading is not necessary in fall as the plant is not likely to bloom again. Flowers from cockscomb plants are also excellent cut flowers for floral displays.
Blooms are generally limited by water currents winds and where nutrients enter the water. 20072020 When grown in the right conditions celosia can be a long-blooming low maintenance plant but it can also be susceptible to certain pests and diseases. Move outdoors two weeks after the last frost or wait longer if it is still getting cold at night.
Expect two or three years out of them before they give up.
23062020 Once its deep red plumes bloom in late summer or early autumn it stays colorful for 10 weeks as long as a freeze doesnt hit it too hard. Does celosia bloom all summer. But it can live and grow in partial shade as well except there wont be as many flowers and it wont grow as tall. While aging naturally on the plant celosia flowers fade to a whisper of their previous hue taking on a straw-like appearance.