Hibiscus moscheutos – Swamp Rose Mallow (Hardy Hibiscus)

Short Product Description

Swamp Rose Mallow (Hibiscus moscheutos)—a native hardy hibiscus with 6–12″+ flowers in white, pink, or red (often with a dark eye); thrives in full sun and moist to wet soils; attracts hummingbirds and pollinators; Zones 4–9.

Native/Non-native – Native
Hardiness Zone – 4–9
Sun – Full sun (tolerates light part sun)
Moisture – Moist to wet; evenly moist in beds
Size – 3–7′ height; 3–4′ spread

Comments

  • Dinner-plate blooms midsummer to frost
  • Moisture-loving; great for rain gardens and pond edges

Description

Product Description

Hibiscus moscheutos (Swamp Rose Mallow / Hardy Hibiscus) is a show-stopping native perennial for sunny, moisture-rich sites. From midsummer into fall, it unfurls massive, dinner-plate flowers (6–12″+) in shades of white, pink, or red—often with a bold contrasting eye—held above broad, tropical-looking foliage. Deep-rooted and long-blooming, it thrives in moist to wet soils along pond edges, in rain gardens, and in well-watered borders, drawing hummingbirds, butterflies, and pollinators for weeks.

Quick-Glance Specs

Attribute Details
Botanical Name Hibiscus moscheutos
Common Name Swamp Rose Mallow; Hardy Hibiscus; Crimson-Eyed Rose Mallow
Plant Type Native perennial wildflower (herbaceous hibiscus)
Native/Non-native Native to eastern North America
Hardiness Zone 4–9
Sun Exposure Full sun (light part sun tolerated with steady moisture)
Moisture Moist to wet; adapts to average soils with irrigation
Mature Height 3–7 ft (site/cultivar dependent)
Mature Spread 3–4 ft clump
Growth Habit Upright, bushy; emerges late in spring from woody crowns
Growth Rate Moderate to fast
Fragrance None to light (varies by selection)
Bloom Time Midsummer to frost
Flower Size/Color 6–12″+ blooms; white, pink, red; often with dark eye
Seasonal Interest Long bloom; bold foliage; persistent seed heads into winter
Foliage & Features Large, tropical look; green to gray-green leaves
Landscape Features Heavy pollinator draw (bees, butterflies, hummingbirds)
Landscape Uses Rain gardens, wet meadows, pond/stream edges, well-watered borders
Soil Rich loam or clay-loam; clay tolerant with moisture
Water Needs Medium to high (keep evenly moist)
Maintenance Low–medium; cut back after frost/late winter; leave late to emerge
Deer/Pest Resistance Moderate—protect young growth if pressure is high
Container Friendly Yes—in large, moisture-retentive containers
Recommended Spacing 24–36″ on center

Care & Growing Information

  • Site & Light: Plant in full sun for maximum flower size and count; light part sun acceptable with steady moisture.
  • Soil & Water: Prefers moist, fertile soils (loam or clay-loam). In average beds, provide regular irrigation—do not allow prolonged drought.
  • Spring Emergence: This species emerges late—often after many perennials have leafed out. Mark its location and avoid premature removal.
  • Planting: Set crowns level with soil; space 24–36″ for airflow. Mulch to conserve moisture (keep mulch off crowns).
  • Maintenance: Deadhead for tidiness or leave seed heads for winter interest. Cut back stems to 4–6″ after frost or in late winter/early spring.
  • Fertility: Moderate feeding in spring promotes strong bloom; avoid excessive nitrogen that can soften growth.

Key Features

  • Spectacular 6–12″+ blooms midsummer to frost
  • Moisture-loving native—excellent for rain gardens and pond edges
  • Attracts hummingbirds, butterflies, and bees
  • Clay tolerant with steady moisture
  • Bold, tropical foliage for high-impact borders

Problems

  • Generally easy. Watch for Japanese beetles, hibiscus sawfly, and occasional aphids—use hand-picking or targeted, pollinator-safe controls. In drought or high heat without water, buds may abort; maintain even moisture. Ensure spacing to reduce leaf spot.

Uses in the Landscape

  • Rain gardens and pond margins needing bold, long bloom
  • Back-of-border anchors with ornamental grasses and late perennials
  • Wet meadows and native plantings for habitat support
  • Large containers on patios with consistent irrigation

Availability / Ordering

  • Sizes Offered: #1 Gallon, 4″, DP-50 Plug
  • Recommended Spacing: 24–36″ for cohesive drifts and airflow.

Why You’ll Love It

  • Unmatched flower size and color on a hardy native perennial
  • Thrives where many perennials struggle—moist to wet soils
  • Simple care: water well, cut back once, and enjoy months of blooms

Quick Highlights

A moisture-loving native with huge, showy bloomsHibiscus moscheutos powers rain gardens, pond edges, and sunny borders with pollinator action and dramatic color from midsummer to frost.

Additional information

Size

#1 Gallon, 4", DP50 Plug