How To Care For Hibiscus Bush. How to care for hibiscus Outside. Make sure temperatures stay above 50 degrees Fahrenheit.
How to Prune a Hibiscus Plant. Mulch around the plant to retain moisture and to provide winter protection for the roots. However take care to ensure that the nutrients are well-balanced as over-fertilizing can lead to toxicity which can result in imbalances and severely damage or even kill the plant.
Those that live in Arizona and Nevada should supplement with our Soil and Water Conditioner because of the high levels of salt found in the local water.
You may have to augment with artificial light. In spring give them a good feed with preferably a high potash granular feed such as a rose food. Add water up to the top of the gravel and as it evaporates the humidity will rise around the plants. Water the hibiscus regularly during warm weather when the plant is in bloom.