Swamp Rose-mallow (Hibiscus Grandiflorus) is a perennial shrub in the Malvaceae family with moderate care difficulty. It requires high watering and full sun or partial shade light in USDA hardiness zones 7-10. This plant is safe for cats and dogs.

An herbaceous, shrub-like, perennial wetland plant noted for its large, showy, fragrant flowers.

Swamp Rose-mallow

Swamp Rose-mallow

Hibiscus Grandiflorus

An herbaceous, shrub-like, perennial wetland plant noted for its large, showy, fragrant flowers.

Quick Facts

Type
shrub
Lifecycle
perennial
Care Difficulty
Moderate
Water Needs
High
Light
Full Sun, Partial Shade
Hardiness Zones
7-10

Safety

🐕
Pet Safe
👶
Child Safe
Non-Toxic

Growing Conditions

Soil Types:loamy, silty, peaty
Indoor:No
Outdoor:Yes
Garden Use:specimen, pollinator attractor, wetland restoration

Care Calendar

Monthly care tasks for Swamp Rose-mallow

Jan
Prune
Feb
Fertilize
Mar
Repot
Apr
Water+
May
...
Jun
...
Jul
...
Aug
...
Sep
...
Oct
...
Nov
...
Dec
...

Expert Care Tips

Pro tips from botanists and plant experts

Watering Tip

Check soil moisture by inserting your finger 1 inch deep. Water only when the top layer feels dry to prevent overwatering.

Humidity Trick

Group plants together to create...

Growth Hack

Rotate your plant every...

Photo Gallery10+ photos

Swamp Rose-mallow
Swamp Rose-mallow detail

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Taxonomy

Family:Malvaceae
Genus:Hibiscus