how to deadhead petunias

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how to deadhead petunias

To deadhead petunias, simply remove the spent flowers to encourage the plant to direct energy toward producing more blooms rather than seeds. This can be done by pinching off the dead flower with your thumb and forefinger or using pruning shears. It's important to remove the entire spent bloom including the base where seeds form, not just the petals, to prevent dried seed pods from forming. You can cut the stem just below the flower above healthy foliage if needed. Deadheading should be done regularly, about once or twice a week, especially during peak blooming. This keeps petunias looking healthy, prevents them from becoming leggy, and promotes longer flowering through the growing season until the first frost. Some varieties like Supertunias are self- cleaning and do not require deadheading. In summary:

  • Pinch or cut off spent blooms at the base of the flower stem.
  • Remove entire flower and seed base.
  • Deadhead regularly, about once or twice a week.
  • Supertunias often don’t need deadheading.
  • Prune leggy stems as needed to keep the plant compact.

This simple care routine can keep petunias blooming vibrantly all summer long.