Swamp Rose Mallow - Hibiscus moscheutos

Swamp Rose Mallow - Hibiscus moscheutos

Phonetic: hy-BIS-kus mos-KEW-tus

Rose Mallow has large, showy pink flowers up to six inches in diameter. A good candidate for pond margins or water features. It naturally prefers rich moist soil, but also does perfectly well in fertile garden soil. A relative of the Hollyhock, the beautiful Rose Mallow attracts butterflies with its showy blossoms.

• Hardiness:  5 - 8
• Native Region: BONAP Map
• BONAP Map Key Color Guide: Map Color Key
• Sun Exposure:  Full, Partial
• Flower Color:  White, Pink
• Bloom Time:  July, August, September
• Soil Type:  Wet, Medium
• Mature Plant Size: 3-4', 5-7' in bloom
• Plant Spacing:  18-24"
• Host Plant: Large Orange Sulphur
• Attracts: Butterflies, moths, bees
• Advantages:  Deer resistant, tolerant of clay and poorly drained soils
• Landscape Uses:  Wetland edge, rain gardens
• Companion Plants: Switchgrass, Butterflyweed, Narrowleaf Sunflower

Swamp Rose Mallow in Pollinator and Wildlife Gardens

Native perennials like the swamp rose mallow plant not only bring bold summer colors to your gardens but also create a valuable wildlife habitat in your landscape. In a diverse native planting, it can contribute to a healthier backyard ecosystem.

• Supports native pollinators: The large flowers attract bees, moths, butterflies, and other insects searching for nectar during the summer blooming period.
• Provides habitat value: Dense stems and foliage create shelter areas for small insects, even in winter, and contribute to a more complex garden environment.
• Complements wetland landscapes: Its ability to thrive in moist conditions makes it a natural fit for pond edges and low-lying areas.

Explore how this beautiful native plant can support your garden’s ecosystem. Shop at Bagley Pond Perennials today or contact us with any questions.

Frequently Asked Questions

Will swamp rose mallow spread aggressively in my garden?

Swamp rose mallow does not spread aggressively but usually forms clumps. Mature plants may increase in size over time, which makes them a reliable long-term feature in your landscape.

Does this plant tolerate wet soil?

Yes. Unlike many ornamental perennials that struggle in moist areas, swamp rose mallow naturally grows in wet habitats and can do well in gardens with damp soil.

When will a newly planted swamp rose mallow begin flowering?

New plants may need time to establish their root systems before producing full flowers. With suitable sunlight and soil conditions, it will help support healthy growth and flowering.

Does it need fertilizer to grow well?

It generally grows well in fertile soils and does not require heavy feeding. In many native garden settings, maintaining healthy soil conditions is more beneficial than adding fertilizer all the time.

Should I divide it as it matures?

Not really, but mature plants can be divided if they become too large for their space or if gardeners want to add more plants to another area of the landscape.