Western Bleeding Heart (Dicentra formosa)

Western Bleeding Heart

Dicentra formosa

Delicate heart-shaped blooms hang like dropped love letters. Herbaceous perennial; common name: Western Bleeding Heart.

Partial sun
2–3/week
Moderate
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Plant Needs

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Sunlight Prefers dappled shade or partial sun; avoid intense midday summer sun which can scorch foliage
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Watering Keep soil consistently moist but not waterlogged; avoid allowing the root ball to dry out completely
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Temperature Hardy to cool temperate climates; tolerates mild frost and goes dormant in extreme summer heat above 28°C
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Characteristics

  • Leaf: Fern-like, blue-green compound leaves with finely divided, soft-textured leaflets
  • Flower: Pendulous, heart-shaped pink to purple blooms clustered on arching stems
  • Stem: Slender, green arching stems that support flower clusters without additional staking
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Care Guide

Watering

Maintain even soil moisture; apply mulch to reduce evaporation

Fertilization

Apply diluted organic fertilizer once monthly during active growth. Use a balanced, slow-release organic fertilizer to avoid burning tender roots

Banana peel compost tea:Compost banana peels for 2-3 weeks, steep in water for 24 hours, dilute 1:20 with water for root drenching; avoid applying to foliage to prevent mold growth
Pruning
  • Deadhead spent flower stems to encourage occasional late-season reblooming
  • Cut back yellowing foliage to ground level after summer dormancy begins
  • Thin overcrowded clumps in early spring to improve airflow and reduce disease risk
  • Remove damaged or diseased leaves promptly to prevent spread of pathogens
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Toxic; contains isoquinoline alkaloids that cause vomiting, diarrhea, abdominal pain, and lethargy

Humans: Ingestion of large amounts may cause mild gastrointestinal upset including nausea and diarrhea

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Garden Uses & Culture

Culture: Symbolizes deep romantic love and compassion; often used in memorial gardens to represent heartfelt grief

Usage: Ornamental garden plant for shaded areas; cut flowers for small, delicate bouquets