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Papaveraceae HERB OUTDOOR Placement Primary: Ornamental

Bleeding Heart

Lamprocapnos spectabilis

Identified By Marcs

The bleeding heart is a popular perennial plant renowned for its uniquely shaped, heart-like pink and white flowers that dangle gracefully from arching stems during the spring season. Native to parts of Asia, this woodland ephemeral thrives in cool, temperate climates and shady garden environments. It goes dormant during the heat of summer, returning reliably the following spring. Its enchanting blossoms make it a staple in shaded border gardens, woodland displays, and cottage landscapes, where it adds a touch of whimsical elegance.

Also known as: Asian bleeding-heart Dutchman's breeches Lyre flower

Toxicity & Safety

Is Bleeding Heart toxic to pets?

Yes, toxic to pets.

Bleeding heart plants are toxic to cats, dogs, and horses. They contain isoquinoline-like alkaloids which can cause severe vomiting, tremors, excessive drooling, and convulsions if ingested in sufficient quantities. Pet owners should plant them well out of reach or avoid them entirely in yards frequented by curious animals.

Is Bleeding Heart toxic to humans?

Yes, toxic to humans.

The bleeding heart plant is considered toxic to humans. All parts of the plant, especially the roots and foliage, contain alkaloids that can cause skin irritation upon contact and systemic poisoning if swallowed. Ingestion may lead to symptoms such as nausea, vomiting, dizziness, and respiratory depression. Care should always be taken when handling this plant.

Is Bleeding Heart safe during pregnancy?

Caution advised during pregnancy.

Due to the toxic alkaloids present throughout the bleeding heart plant, pregnant women should strictly avoid handling or consuming any part of it. Accidental ingestion or dermal absorption of toxic compounds can pose significant health risks to both the mother and the developing fetus, potentially causing severe systemic complications.

Growth & Dimensions

Height 60 - 90 cm
Width 45 - 90 cm
Growth Rate Moderate
Care Level Easy
Lifespan Perennial

Ideal Environment

Temperature -25°C - 25°C
Sunlight Hours 3 - 6 hrs/day
Sun Exposure Partial shade
Soil pH 6 - 7.5
Watering Interval 5 - 10 days
Humidity 40.00% - 80.00%
USDA Zone 3 - 9

Temperate Woodland

Climate: Thrives in cool, temperate climates with distinct seasons, enjoying moist springs and cool summers protected from harsh winds.

Soils: Loam Humus-rich soil Chalk
Annual Rainfall: 700 - 1500 mm

Native Regions

Japan (JP – Asia)
Korea (KR – Asia)
Siberia
Northern China

How to Care for Bleeding Heart

How should I handle soil and fertilization?

Thrives in humus-rich, well-draining soil with a neutral to slightly alkaline pH. Incorporate organic compost annually around the base to retain moisture and provide gentle nutrients.

How should I handle pruning and maintenance?

Avoid heavy pruning during the growing season. Once the foliage turns yellow and dies back naturally in mid-summer, cut the dead stems back to ground level to tidy up the garden.

How should I handle watering your bleeding heart?

Keep the soil consistently moist but never waterlogged. Bleeding hearts prefer evenly damp conditions, especially during their active growing season in the spring. Reduce watering slightly when the foliage begins to die back naturally as summer approaches and the plant enters its dormancy period.

How should I handle sunlight requirements?

Provide partial to full shade for optimal growth and flowering. While they can tolerate morning sun in cooler northern climates, intense afternoon sunlight will scorch their delicate foliage and cause the plant to go dormant prematurely. Shady woodland settings or spots beneath deciduous trees are ideal.

How to Propagate Bleeding Heart

How to propagate Bleeding Heart by cutting?

Take basal stem cuttings in spring when new growth is young and flexible, rooting them in a moist, sterile medium.

How to propagate Bleeding Heart by division?

Carefully dig up the root clump in early spring or autumn when the plant is dormant. Using a sharp, sterilized knife or spade, divide the fleshy roots ensuring each section has at least one or two healthy growing buds. Replant the divisions immediately at the same soil depth they were previously growing at, and water thoroughly to settle the soil around the roots.

Common Diseases & Pests of Bleeding Heart

What is Powdery Mildew and how is it treated?

Fungal
Symptoms:

A white or gray powdery fungal growth appears on the surface of leaves and stems, eventually causing leaves to distort, yellow, and drop prematurely if left untreated in humid conditions.

Treatment:

Apply a suitable organic fungicide or Neem oil directly to the affected foliage during the early stages of infection. Ensure adequate air circulation around the plants and remove heavily infected leaves.

Prevention:

Space plants properly to encourage good airflow, water at the base of the plant to keep foliage dry, and plant them in locations that receive appropriate partial shade rather than deep, stagnant darkness.

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