Oleander Leaf Curl Issues: Reasons For Leaf Curl On Oleander

By Mary H. Dyer, Master Naturalist and Master Gardener Oleander (Nerium oleander) is a prolifically blooming shrub that brightens up the landscape in the warm climates of USDA plant hardiness zones 8 through 10. Although the plant is hardy and adaptable, it can develop various problems, including oleander leaf curl. If your oleander leaves are curling, it’s time to troubleshoot some possible reasons. Read on for suggestions. Leaf Curl on Oleander When it comes to troubleshooting reasons for leaf curl on oleander, it’s important to start with the basics. For example, improper watering may be the culprit. During warm weather, oleander should be watered any time rainfall is less than an inch per week. As a general rule of thumb, the shrub benefits from a deep watering once every three or four days. Avoid frequent, shallow watering, which encourages weak, shallow roots. On the other hand, don’t overwater, as poor

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