Guide to Growing Hibiscus in Containers
These flowering plants are not just for landscapes. Grow hibiscus in pots on a sunny patio, deck or apartment balcony for long lasting summer color.
Depending on the type, Hibiscus is an herbaceous perennial, deciduous or evergreen shrub valued for their captivating flowers. The showy blooms, which appear from mid-summer into fall, can reach up to 12 inches wide, lending a tropical appeal to the landscape.
The most commonly grown hibiscus varieties include both hardy and tropical types.
- Rose of Sharon is a deciduous shrub hardy in USDA zones 5-9.
- Rose mallow is an herbaceous perennial that dies back to the ground in winter, and is hardy in USDA zones 4-9. Our Summerific® Hibiscus series are Rose Mallow hybrids.
- Tropical hibiscus is hardy in USDA zones 9-11, depending on the variety, and is sensitive to temperatures below 50 degrees F.
These popular landscape shrubs can also be grown in pots and are easy to care for when given the right type of container, rich soil, plenty of water and light. Hibiscus planted in pots are useful where space is limited, making an attractive focal point on an apartment balcony, patio or deck.
Keep reading to find out more on how to plant and care for hibiscus in pots.
Hibiscus Care in Containers
Potted hibiscus care is somewhat different than for plants in the ground. Follow these growing tips for lush, beautiful potted plants.
Container Choice
When growing hibiscus in pots, plants prefer to have their roots a bit crowded. Choose a container that is 1 to 2 inches wider and deeper than the root ball. Select a sturdy pot made of plastic, composite, clay, stone, ceramics or cement. Pots made of lighter materials will be easier to move around. Make sure containers have adequate drainage holes in the bottom to prevent root rot.
Light
Hibiscus plants need lots of sunlight to flourish and flower their best. Choose a site with protection from wind that receives at least 6 hours of direct sunlight per day. In hotter climates, provide shade from hot afternoon sun. If pots are placed up against a wall, fence or other area that blocks sunlight, turn plants every week or two so they grow evenly on all sides.
Soil
Hibiscus in containers need lightweight soil that drains well in order to thrive. Garden soil is too heavy and compacted for container use, impeding the flow of water and nutrients to the roots. It can also contain harmful pathogens that can cause disease. Soil for hibiscus in pots should consist of a high-quality soilless potting mix or potting soil that contains materials such as peat moss, perlite, vermiculite or coco coir, which are lighter and will improve drainage.
Proven Winners® Premium Potting Soil contains a superb blend of all the ingredients your hibiscus needs to flourish.
Fertilizer
When growing hibiscus in pots, provide a consistent source of nutrients throughout the growing season. Nutrients are flushed out of the soil more quickly in containers than in the ground due to more frequent watering, so plants will need to be fertilized more often.
At the time of planting, apply Proven Winners® Continuous Release Plant Food according to package instructions to stimulate lush foliar growth and flower buds. When flowering begins, you can supplement with Proven Winners® Premium Water Soluble Plant Food every two weeks to increase flower production.
Planting Hibiscus in Containers
Spring is the best time for planting hibiscus. Wait until all danger of frost has passed in your area. Follow these steps to plant hibiscus in pots.
- Place 1 to 2 inches of potting soil in the bottom of the container.
- Remove hibiscus plant from its nursery pot and gently tease out roots if pot-bound.
- Set the plant in the container with the top of the root ball 1 to 2 inches below the rim of the pot.
- Add potting soil around the sides of the root ball and gently tamp down to remove air pockets.
- Continue adding soil until it reaches the base of the stem.
- Water until moisture comes out of the drainage holes at the bottom of the pot.
FAQ
How often to water hibiscus in pots?
Hibiscus prefer evenly moist soil and don’t like to dry out. The frequency of watering depends on several factors, including the size of the pot, air temperature and type of container. Clay pots are porous and dry out more quickly.
Potted hibiscus typically need to be watered every 1 to 2 days. Check plants daily. If the soil is dry 1 to 2 inches deep, it’s time to water. Drench the soil surface until excess water begins to flow out of the bottom of the pot. Plants may need daily watering during heat and dry spells. Avoid overwatering to prevent root rot.
To simplify watering chores, try Proven Winners® AquaPots® Lite self-watering planters or install a WaterWise® drip irrigation system.
How to prune hibiscus in a pot
Hibiscus bloom on new growth and need minimal pruning. In late winter or early spring, cut out any dead, diseased or broken branches and lightly shape plants as needed. Avoid pruning later in the growing season, which will result in a loss of flower buds.
How long can hibiscus live in pots?
Hibiscus plants can grow quickly and become quite large, so they will likely need to be transplanted into a bigger pot every 2 years. In early spring, remove the plant from its pot and check the root ball. If the roots are tightly compacted, it’s time to transplant.
Hardy hibiscus plants will eventually need to be planted in the ground, though dwarf varieties such as Lil’ Kim® may be kept in larger pots even when they reach their full size. When grown in USDA zones 10-12, tropical hibiscus varieties may also be transplanted into the ground when they become larger.
Do hibiscus do better in pots or in the ground?
Smaller specimens will thrive either in pots or the ground when given the right growing conditions. Larger specimens will perform better when planted in the ground.
What to do with potted hibiscus in winter
Tropical hibiscus is sensitive to colder weather. When temperatures dip to 50 degrees F, bring potted hibiscus plants indoors for the winter. Before bringing plants inside, inspect leaves and stems for insect pests and gently spray with water to dislodge pests, dirt and pollen.
Place potted hibiscus plants in bright indirect light near a sunny window away from drafts. Reduce watering and fertilizing until spring. Keep an eye out for indoor pests such as aphids, mealy bugs or scale and treat plants as needed with insecticidal soap or neem oil.
In spring when minimum temperatures reach 50 degrees F or higher, move plants outside and slowly acclimate to outdoor conditions.
Hardy hibiscus in pots will go dormant in winter and should be overwintered outside. In order to survive outdoors in winter, potted plants should be two zones hardier than the climate zone you live in. Make sure plants are in containers made of plastic, composite, metal or wood that won’t crack in freeze-thaw weather cycles. Larger pots will offer more protection to the roots than smaller ones.
Place pots in a sheltered spot against your house or other building out of the wind. For additional protection, pots can be covered with a layer of burlap. Cease fertilizing while plants are dormant. Check pots periodically throughout the winter to make sure the roots don’t dry out completely and water plants sparingly as needed.
When plants begin to break dormancy in early spring, remove mulch, place plants in brighter light and resume watering and fertilizing.
If potted plants are hardy two zones colder than yours, they can be overwintered in an unheated garage. They can also be transplanted into the ground in fall and mulched for winter protection.
Questions? Email us at helpdesk@provenwinnersdirect.com 🌿We're happy to help!
Contributor: Janet Loughrey
