Scarlet Rosemallow (Hibiscus coccineus)

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Sunlight Full sun to partial shade; produces the most blooms with 6+ hours of direct daily sunlight

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Watering Maintain consistently moist soil; tolerant of shallow standing water in wetland garden settings

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Temperature Hardy to -10°C; dies back to rhizomes in freezing temperatures, regrows in spring

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Leaf: Deeply palmate, 5–7 pointed lobed leaves with serrated margins, bright medium green
Flower: 10–15 cm wide vivid scarlet red star-shaped blooms with prominent yellow central staminal column
Stem: Erect, slightly hairy green stems that die back to underground rhizomes in winter

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Watering

Keep soil continuously moist; water deeply 2–3 times weekly to prevent drying out

Fertilization

Apply balanced, slow-release fertilizer once at new growth onset. Avoid high-nitrogen fertilizers to prevent excessive foliage growth over blooming

Composted banana peel tea：Steep fully composted banana peels in water for 3 days; dilute 1:20 with water for root drench to avoid nutrient burn

Pruning

Cut back all dead foliage to ground level in late winter to stimulate new spring growth
Thin crowded stems in early spring to improve air circulation and reduce disease risk
Deadhead spent blooms regularly to extend the flowering period

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Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirmed non-toxic; no adverse effects expected from ingestion

Humans: No known toxic effects to humans; edible flower petals may be used in teas or garnishes

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Culture: Symbolizes vibrant summer beauty and resilience in southeastern US garden traditions

Usage: Ornamental wetland plant; attracts hummingbirds, bees, and butterflies; edible petals for herbal teas