How to Deadhead Lantana
- 1). Inspect the lantana plant as the flowers begin wilting. Varieties that develop a swollen seedpod at the base of the declining flower require deadheading. Those with no swollen seedpod are self-cleaning and deadheading is not necessary to prolong flower bloom.
- 2). Snip the old flower cluster off the plant after most of the petals have withered. Cut the flower stem within a quarter-inch of the topmost set of leaves.
- 3). Prune the entire plant if most of the flower clusters have faded and further blooms or buds aren't forming. Trim back the plant by up to one-fourth its height to encourage a fresh flush of buds and flowers.
- 4). Cut back the old dead stems in spring before new growth begins. Trim back the old stems to within 4 inches of the ground to encourage lush new growth and flower bud formation.
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