Bleeding Heart (Lamprocapnos spectabilis)

Plant Snapshot

Common Name: Bleeding Heart
Latin Name: Lamprocapnos spectabilis
Alternate Names: Dicentra spectabilis
Hardiness Zones: USDA zones 3–9. In cold zones plants die back to the ground and reliably regrow in spring. In warmer zones plants may go dormant in summer and prefer shady, cool sites to avoid heat stress.
Typical Height: 24–36 in (60–90 cm) tall
Typical Spread: 24–36 in (60–90 cm) wide
Bloom Period: Spring blooms, typically April to June in the Northern Hemisphere
Soil Preferences: Rich, humus-rich and moist but well-drained soil. Neutral to slightly acidic pH preferred. Poor drainage leads to root rot and decline.
Light Preferences: Partial shade to full shade. Tolerates morning sun or dappled light. Hot afternoon sun can scorch foliage and cause early dormancy.
Toxicity: All parts reported as poisonous if ingested by humans and animals. Handling may cause skin irritation in some people. Confirm severity with poison control for pet or child exposures.
Propagation: Divide clumps in spring or fall. Also from seed with cold stratification or from root cuttings. Division preserves cultivar traits while seed may not.

Key Facts

Shade tolerant herbaceous perennial with arching stems of pendant flowers
Distinctive heart-shaped pink and white flowers appear in spring
Forms clumping mounds that can be divided to propagate
Goes dormant or dies back after flowering or in summer heat
Prefers rich, moist, well-drained soil
Commonly grown in USDA zones 3–9
All plant parts are reported as poisonous if ingested
Best planted where it gets cool roots and dappled or afternoon shade

Bleeding Heart (Lamprocapnos spectabilis) is a shade-loving herbaceous perennial prized for arching sprays of pink and white heart-shaped flowers in spring. It forms clumping mounds that perform well in cool, sheltered woodland beds but will die back after flowering or in summer heat.

Identification and key traits

Arching stems carry pendant, heart-shaped pink and white flowers that appear in spring, typically April to June in the Northern Hemisphere. Plants reach about 24 to 36 inches tall and spread to a similar width, forming clumping mounds that can be divided to rejuvenate or propagate.

Where to grow and best uses

Use Bleeding Heart in shaded borders, woodland gardens, or beneath trees where roots stay cool and soil is kept moist. It thrives in USDA zones 3 to 9 and is best sited in partial to full shade, tolerating morning sun but avoiding hot afternoon exposure that brings early dormancy.

Planting and spacing

Plant or divide clumps in spring or fall and space plants about 24 to 36 inches apart to allow mounds to fill in. Prepare a planting area with rich humus and loosened, well-drained soil so roots can establish without standing water that leads to decline.

Watering and soil

Bleeding Heart prefers rich, moist, well-drained soil with a neutral to slightly acidic pH. Keep soil consistently damp but not waterlogged; poor drainage encourages root rot and plant decline. Mulch helps retain moisture and keeps roots cool in warmer sites.

After-flowering care and dormancy

After blooming the foliage often fades and the plant goes dormant or dies back, especially in summer heat. Allow foliage to yellow naturally before removing it, reduce irrigation during dormancy and plan divisions in spring or fall when clumps need rejuvenation or crowding control.

Propagation and managing spread

Divide clumps in spring or fall to preserve named cultivars and to control spread. Plants can also be grown from seed with cold stratification or from root cuttings but seedlings may not be true to type. Regular division keeps clumps healthy and prevents overcrowding.

Toxicity and safety

All parts of Bleeding Heart are reported as poisonous if ingested and handling can cause skin irritation in some people. Keep plants away from areas where children or pets might chew foliage and consult local poison control or veterinary sources for exposure guidance.

Frequently asked questions

How fast does Bleeding Heart grow?: It forms clumping mounds that reach about 24 to 36 inches tall and wide; growth rate varies by site and cultivar, and divisions establish more quickly than seed-grown plants.
When does Bleeding Heart bloom?: Blooming occurs in spring, typically April through June in the Northern Hemisphere, with exact timing depending on local climate and elevation.
Can Bleeding Heart tolerate sun?: It prefers partial to full shade and tolerates morning sun; hot afternoon sun can scorch foliage and trigger early dormancy.
How do I propagate Bleeding Heart?: Division in spring or fall is reliable and preserves cultivar traits. Seed requires cold stratification and may not come true to type; root cuttings are another option.
Is Bleeding Heart poisonous?: Yes. All parts are reported as poisonous if ingested and may cause skin irritation. Confirm severity with local poison control or veterinary sources for exposures.