How to Maintain a Hibiscus Hedge

Plant hibiscus in a warm, well-drained location that receives plenty of sunlight. Choose a loamy location that receives at least six to eight hours of full, direct sunlight with some afternoon shade to prevent faded blooms.

Water the hibiscus hedge regularly to maintain a moist, but not saturated, soil environment. Irrigate the hedge at soil level to keep the foliage dry and reduce the potential of fungal diseases. Provide the hibiscus with a deep irrigation, about an inch of water per week, to ensure that its deepest roots receive water. Allow the soil to dry slightly between waterings to prevent overwatering and root rot.

Feed your hibiscus hedge regularly throughout the growing season, which is early spring through early fall. Use a well-balanced fertilizer designed for hibiscus. Feed the hedge according to the fertilizer instructions to avoid over-fertilizing and injuring the hedge.

Trim and prune this vigorously growing hedge periodically throughout the growing season. Trim back branches and stems, and remove all water sprouts. Remove dead, dying and diseased branches completely. Thin the hibiscus’ dense interior foliage to increase the amount of air and sun that pass through it. Use sharp, sterile shears to make flush cuts.

Take steps to keep your hibiscus hedge healthy. Keep the hedge area free of debris and defoliation to reduce the potential of disease. Maintain a weed-free area so the hedge does not have to compete for nutrients.

Inspect the hibiscus hedge regularly for signs of disease and infestations. Look for symptoms such as wilting, spotted foliage, nibbled leaves, spiderwebs, dieback, growth stunt, droop and discoloration. Treat disease and infestations immediately to prevent permanent injury to your hibiscus hedge.