Rose Mallow Hibiscus (Hibiscus moscheutos) is a hardy perennial that produces stunning, dinner-plate-sized blooms in shades of pink, red, and white. Perfect for garden borders, pondsides, and large containers, this plant adds a tropical look to any landscape. Known for attracting butterflies and hummingbirds, Rose Mallow is both ornamental and pollinator friendly. Once established, it is easy to care for and comes back year after year with bold summer color.
Seed Information
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Type: Flower Seeds
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Common Name: Rose Mallow, Swamp Hibiscus, Hardy Hibiscus
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Genus: Hibiscus
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Life Cycle: Perennial
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Features: Large showy blooms, pollinator friendly, hardy perennial, ornamental landscape flower
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Season of Interest: Summer to early fall
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Indoor/Outdoor: Outdoor (borders, containers, pondsides)
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Sunlight: Full sun
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Cultivating Difficulty: Moderate (requires consistent moisture to establish)
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Watering: Moderate to heavy, prefers moist soil
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Climate: Temperate, Humid Subtropical, Mediterranean
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Growth Habit: Upright clumping, 3–6 ft tall, wide spreading
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Soil Type: Moist, fertile, well-draining soil
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Soil pH: 6.0–7.0
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Planting Time: Spring after frost
Grow Instructions
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When to Plant: Sow indoors 8–10 weeks before last frost or directly outdoors in spring
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Soil: Moist, fertile, well-draining soil enriched with compost
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Sunlight: Full sun (6+ hours daily)
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Watering: Keep evenly moist, especially during hot weather
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Spacing: 24–36 inches apart
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Germination: 14–28 days at 70–75°F (21–24°C); scarify or soak seeds before sowing for best results
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Bloom Season: Mid-summer to early fall
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Tips: Mulch around plants to retain soil moisture; cut back in late fall or early spring to promote strong regrowth