Will hibiscus bloom more then one time per season?
Certified GKH Gardening Expert
Yes, these plants will often rebloom throughout the season. Fertilizer has a lot to do with this as more nitrogen produces heavier foliage while more phosphorus results in additional blooms. In addition, regular deadheading of spent blooms will also encourage more blooms in the season.
Use a high potassium fertilizer. You can either use a diluted liquid fertilizer one a week, a slow release fertilizer once a month or you can add a high potassium compost to the soil. Here is an article that you may find helpful: https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/hibiscus-fertilizing.htm