Swamp Rose Mallow, Common Rose Mallow

Swamp Rose Mallow, Common Rose Mallow

Hibiscus moscheutos

This upright perennial bears white flowers in fall.

  • White flowers are produced in fall, providing colour through the bloom season.
  • Upright clump, reaching 1.6 m at maturity; divide every three to four years to maintain vigour.
  • Best in full sun with moist, average, wet soil.
Size
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Plant Characteristics

Sunlight
Full sun
Soil Moisture
Moist, Average, Wet
Hardiness Zone
4 – 4
Mature Height (meters)
1.3 – 1.6
Mature Spread (meters)
1.0 – 1.5
Growth Rate
Fast
Flower Colour
White
Foliage Colour
Green
Bloom Time
Fall
Habit
Upright
Deer Resistant
✓
Rabbit Resistant
✓
Pollinator Friendly
✓
Attracts Birds
✓
Ontario Native
✓
Landscape Uses
Border, Mass planting, Rain garden, Accent
Growing & Maintenance Tips
Hibiscus moscheutosgrow best in a moist to average soil, in full sun, and are not tolerant of lengthy dry conditions. In the fall, prune branches back to about 30 cm, and once the eyes appear in the spring, remove any dead stalks. Hibiscus are late to break dormancy in the spring; usually late May in southern Ontario. Tall sturdy stems rarely need support, once established in the landscape.
Notes
Native to Ontario

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