Do You Remove The Sunflowers’ Dead Heads?

Deadheading sunflowers is a simple process that involves examining the stem to ensure it leaves as many leaf nodes intact as possible. Use pruners or a snipping tool to cut the peduncle (the stem leading to the sunflower head) about a half-inch above the new leaves/leaf joint. Remove and discard the dead head.

The answer to deadheading depends on your intentions for your garden. If you plan to collect seeds from your sunflowers, you should start cutting off the flower heads when they start to lose their color. Deadheading encourages new growth and extends the blooming season. The difference between deadheading and pinching and how to harvest is important.

When a sunflower head dies, it signifies the end of the blooming period. To save the seeds, wait until the back of the flower head turns yellow before cutting it off. Deadheading not only allows the plant to continue producing flowers but also cleans up the garden and prevents unwanted “volunteers” from growing.

After cutting the flower head off, leave about 12 inches of stem and hang it in a dry, well-ventilated space to allow its seeds to mature. Once the petals have faded, cut the flower heads off and store them in a sunny, warm, dry place for another week. Gently rub the seed head with newspaper to make the seeds fall away easily.

If you want to harvest the seeds, leave the dead heads until the green bits behind the flower turn brown. Cut them 6″ below the flower and hang them. Deadheading sunflowers helps the plant focus its energy toward new flower growth.