Back in March, we posted a video on our social media titled “Hibiscus Care Tips” and got lots of questions about yellowing leaves and what it means. But yellowing leaves can mean several different things, so here are five common reasons.
1. Location. Many Hibiscus are native to sub-tropical and tropical climates. A common exception is the Rose Mallow which is native to the southeastern U.S. Because of this, perennial Hibiscus requires full sun in hot and humid conditions. So if you live more north or in a dry region, the hibiscus may struggle, resulting in yellow leaves that drop.
2. Watering. Yellows leaves are sometimes a sign of over- or under-watering. Hibiscus like staying moist but not soaking wet. Make sure the plant isn’t sitting in water or completely drying out between drinks.
3. Fertilizing. Hibiscus are heavy feeders. The flowers typically only last one day, so to continuously bloom while maintaining nice foliage, it takes a lot of energy. Yellow leaves might mean it’s hungry. An all-purpose fertilizer is always a great choice.
4. Pests. Yellow leaves may also be a cry for help. Make sure to check the soil, under the leaves, and on the stems regularly. Here in Florida, Hibiscus is prone to aphids, whiteflies, and mealybugs. We really like Captain Jack’s Deadbug Brew as a solution.
5. Not all leaves last forever, so if one or two turn yellow and drop, they’ve probably just expired and are making way for new growth.