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PlantSnap
Plant Care
Halberdleaf rosemallow
(Hibiscus laevis)
Also Known As
Halberdleaf rosemallow, Halberd-leaved hibiscus, Native rose mallow, Swamp mallow
About This Plant
Hibiscus laevis is a deciduous shrub that can grow up to 10 feet tall. It has lobed, green leaves and produces showy, pink or white flowers with a crimson center that bloom from mid-summer to fall.
Plant Care Instructions
Outdoor Size Range
5-10 feet (1.5-3 meters)
Light Requirements
Hibiscus laevis requires full sun to thrive. It needs at least 6 hours of direct sunlight per day.
Humidity Needs
Hibiscus laevis prefers moderate to high humidity levels. If the air is too dry, misting the leaves can help.
Fertilizing Schedule
Hibiscus laevis benefits from regular fertilization during the growing season. Use a balanced fertilizer with equal amounts of nitrogen, phosphorus, and potassium.
Pruning Guidelines
Hibiscus laevis can be pruned in late winter or early spring to remove dead or damaged branches and to shape the plant. It can also be pruned after flowering to encourage bushier growth.
Common Pests and Diseases
Hibiscus laevis is susceptible to aphids, spider mites, and whiteflies. It can also be affected by fungal diseases such as leaf spot and powdery mildew.
Indoor Size Range
Not suitable for indoor cultivation
Watering Schedule
Hibiscus laevis requires regular watering, especially during hot and dry periods. The soil should be kept moist, but not waterlogged.
Temperature Range
Hibiscus laevis can tolerate a wide range of temperatures, but it prefers warm temperatures between 60-90°F (15-32°C). It cannot tolerate frost.
Growing Season
Hibiscus laevis grows best in the summer and fall.
Growing Difficulty Level
Hibiscus laevis is moderately difficult to grow. It requires regular watering, fertilization, and pruning, and it is susceptible to pests and diseases.
USDA Hardiness Zones
Hibiscus laevis is hardy in USDA zones 5-9.
Did You Know?
The flowers of Hibiscus laevis are edible and can be used to make tea or jam.
