Heartleaf rosemallow (Hibiscus martianus)

Heartleaf rosemallow

Also known as: Mountain rosemallow

Other names for heartleaf rosemallow (Hibiscus martianus) include Tulipan Del Monte and heartleaf hibiscus. This plant is indigenous to the southwestern United States and is a fantastic attractor of hummingbirds.

Scientific classification

Species

Heartleaf rosemallow (Hibiscus martianus)

Mallows, rock-roses, and allies

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30 cm to 91 cm

Plant Height

30 cm to 90 cm

Spread

Green

Leaf Color

5 cm to 8 cm

Flower Size

Red, Burgundy

Flower Color

Deciduous

Leaf type

15 - 35 ℃

Ideal Temperature

Summer, Fall

Growth Season

Images of Heartleaf rosemallow

Distribution of Heartleaf rosemallow

Distribution Map

Heartleaf rosemallow is a plant initially native to arid regions of a North American country renowned for its deserts. It has since been introduced and is cultivated in various parts of the world, favored for ornamental use due to its showy flowers. Despite its global cultivation, heartleaf rosemallow remains a species most closely associated with the warmer areas of the continent where it originated.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Canyons, talus slopes, gravelly hillsides, chaparral

Hemisphere Trend Curve

Northern

Sorthern

Culture

Symbolism

Delicate beauty

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Quickly Identify Heartleaf rosemallow

Heart-shaped leaves with a silvery-green hue, measuring 2-4 inches (5-10 cm) in length.

Sturdy stem, up to 3 feet (91 cm) tall, with a smooth to sparsely hairy texture.

Crimson red blooms on solitary stems, trumpet-like in shape, 2-3 inches (5-7.5 cm) wide.

Eye-catching oval fruit capsule, 0.8-1.2 inches (2-3 cm), transitioning from green to brown.

Distinctive smooth trunk with greenish-brown color, developing elongated spots and later a grayish tone.

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Care Guide for Heartleaf rosemallow

Every week

Water

Full sun

Sunlight

15 - 35 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Heartleaf rosemallow thrives in humid environments, requiring regular hydration without over-saturation. Water weekly to maintain health. As an outdoor plant in warmer climates, mulching helps retain soil moisture and protect against temperature extremes.

Fertilize: For heartleaf rosemallow, fertilize every two weeks with a balanced nutrient formula during growth; use high-phosphorus fertilizer for blooms. Avoid over-fertilizing to prevent root damage. Water the soil before fertilizing and consider slow-release options for consistent nutrients, promoting healthy growth and flowers.

Pruning: Heartleaf rosemallow thrives with regular pruning, ideally in early to late spring, to maintain shape and stimulate growth. Remove damaged branches and excessive growth for better airflow and light. Use clean tools to prevent disease, and avoid heavy pruning during peak flowering for optimal health.

Propagation: Propagation of heartleaf rosemallow is done via stem cuttings. Choose a healthy shoot, cut below a node, and use rooting hormone. Plant in well-draining soil, maintain moisture and warmth. Once rooted, harden the plant before transplanting, ensuring adequate sunlight and care for optimal growth.

Repotting: Heartleaf rosemallow requires excellent drainage when planted in pots to ensure healthy growth and avoid root rot.

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