Mar 22, Overgrown plants can be pruned back to about a third of their height (and spread if necessary).
You can also lightly trim lantana plants periodically throughout the season to stimulate new growth and encourage flowering. This is usually done by trimming lantana tips back about one to three inches ( to cm.). May 23, If you live in the Northern Hemisphere, you can prune your lantana plants in June.
Trim the stems of your plant to 6–8 in (15–20 cm) to rejuvenate it. If you want to trigger new growth, cut all of the stems to about 6–8 in (15–20 cm). Use pruning shears, and make your cuts at a degree angle%(58). Hard Pruning. Perennial lantanas require hard pruning in late winter or early spring, just before they begin to send up their flush of new growth.
Cut back the entire bush to. Pruning lantana: Where grown as a perennial, plants will become woody shrubs or groundcovers. In early spring, cut out dead wood and prune back by a third to stimulate new growth.
As an annual, lightly prune to shape as needed or if it outgrows a space. Pinch stem tips to encourage branching and flower production. Deadheading.