How to Care for and Trim a Lantana Plant

Plant the lantana in well-draining, mildly acidic soil with full sunlight exposure in middle to late spring. Prepare the site three weeks prior to planting with shovelfuls or organic soil amendments such as compost or manure. Alternatively, fill a hanging basket or decorative pot with quality potting mix if container growing lantana.

Irrigate the lantana plant regularly for the first three to four weeks to help the roots become established. Although mature plants are moderately drought tolerant, flowering and growth rate is affected if left dry for long periods. Provide the plants 1 inch of water every week during the bloom period, unless supplemented by rainfall. However, avoid overwatering the soil or causing it to become soggy.

Feed lantana a complete fertilizer in spring to encourage flowering. Feed vigorously growing plants another application in midsummer. Follow label directions for application rates, since overfertilizing affects flowering and increases susceptibility to diseases.

Trim the lantana plant to control its size and appearance. Remove woody and old stems in spring, cutting them down to 6 to 10 inches from the ground. Deadhead spent or faded flowers throughout the bloom period. Clip the growing tips to encourage bushy growth and prolong flowering. Trim tall, hanging or low-lying stems throughout early summer down to one-third their length. Avoid pruning the lantana plant in fall.

Mulch the soil to retain moisture, reduce the occurrence of competing weeds and protect the roots during the frost so they return the following spring. Spread a 2-inch thick layer of organic mulch, such as wood chips or pine bark, over the soil.

Inspect lantana for common pests such as lace bugs, aphids and whiteflies. Control the pests with insecticidal soap, horticultural oils or registered insecticide. Follow label directions for dosage rates.