Is it okay to use liquid Miracle-Gro Houseplant food 8-7-6 for hibiscus? Should I use it diluted? I've been getting flowers. Unfortunately, they die in a day. Should I snip off the spot where the flower is?
Certified GKH Gardening Expert
Many hibiscus blooms often last only a day--this is normal. 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