Hibiscus plants are a South Florida staple because of their large and colorful blooms. These plants are sold in both bush and tree forms. They come in a wide range of colors, including red, pink, white, orange, and yellow. Some varieties have variegated leaves, and others have double flowers.
How tall do hibiscus get?
Hibiscus are moderate to fast growers. While some varieties can reach heights of 20 feet or more, most can easily be kept at 4–6 feet with routine pruning.
Is there a dwarf type of hibiscus?
“Dwarfed” hibiscus are chemically treated with a growth regulator to reduce growing speed. Unfortunately, without being re-applied, the plants will grow out of the dwarf stage in 6 months.
How often will a hibiscus bloom? How can I encourage it to bloom more often?
Hibiscus can flower on and off year-round, but are more likely to bloom in the warm weather. The flowers last just one day before fading. Fertilizing with a slow-release granular fertilizer on a regular schedule and planting in full sun will encourage blooming. The Garden Place recommends Nurseryman’s Sure-Gro 6-8-10, or Espoma Palm Tone.
How much sun does a hibiscus need?
Hibiscus will grow in full sun to part shade. For the best and most frequent blooms, plant in full sun.
How do I plant my hibiscus in the ground?
When removing the plant from the container, turn the plant upside down and slide it out. Dig a hole 3 times the size of the current container. Mix in some Black Kow composted cow manure or a high-quality planting mix – do not plant directly into the new soil. Once the plant is in the ground, backfill around the root ball, making sure the top of the root ball is slightly higher than the surrounding ground. Water thoroughly, making sure to really soak the root ball, settle the soil, and remove air pockets. You can add mulch, but do not place it up against the stem. Plant these plants 3 feet apart.
Can I keep a hibiscus in a pot?
Yes! In containers, use a well-draining potting mix and make sure there is a hole in the bottom of the pot for the water to run through. We recommend repotting your hibiscus into a larger container every 2 years to avoid the plant becoming rootbound.
How much water does a hibiscus need?
When first planted, hibiscus should be watered deeply whenever the first few top inches of the soil is dry. Once established, water them on a routine schedule – these plants still struggle if they do not get regular watering. Keep an eye out for yellowing leaves, an indication that the watering is either too much or not enough.
When do I prune my hibiscus?
Hibiscus can be pruned at any time except late Fall and Winter, when new growth could be vulnerable to cold snaps. After pruning, expect blooms to appear on the new growth within about three months. Use sharp, clean pruning shears, and make each cut about ¼ inch above a node (eye) that faces the direction you want new growth to go.
How can I prevent and treat insects and diseases on my hibiscus?
Keeping your plant healthy, well-fed, and watered will help your plant become naturally more resilient to pests and disease. If you do need to spray your hibiscus, the best time to spray insecticides is early morning or evening, when temperatures are under 80°F. Be sure to spray the entire plant, including the undersides of leaves, to ensure full coverage and get rid of insects.
For Mealybugs, Aphids, Mites, and Scale, The Garden Place recommends Bonide Systemic Insect Control. For fungal issues, we recommend Fertilome Liquid Systemic Fungicide II.