Kousa Dogwood (Cornus kousa)

Kousa Dogwood

Cornus kousa

Its bracts bloom like white origami stars, softening woodland edges. Deciduous flowering tree; common name: Kousa Dogwood.

Partial sun
1–2/week
Moderate
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Plant Needs

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Sunlight Prefers partial sun to full sun; tolerates light shade, especially in hot summer climates to prevent leaf scorch
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Watering Water deeply when the top 5–7 cm of soil is dry; avoid prolonged waterlogging to prevent root rot
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Temperature Hardy to -20°C; tolerates summer heat up to 35°C with consistent soil moisture
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Characteristics

  • Leaf: Opposite, simple ovate leaves with pointed tips; dark green turning reddish-purple in fall.
  • Flower: True flowers are small greenish-yellow clusters, surrounded by four showy white bracts.
  • Stem/Bark: Mature bark is flaky, mottled tan and gray; young stems are smooth green.
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Care Guide

Watering

Keep soil consistently moist during active growth and flowering

Fertilization

Apply a layer of compost or slow-release balanced fertilizer once. Refrain from fertilizing in late autumn to avoid stimulating tender new growth before winter

Eggshell powder topdress:Crush dried eggshells into fine powder; sprinkle a thin layer around the dripline and gently work into the topsoil
Pruning
  • Remove dead, damaged, or crossing branches in late winter before new growth emerges
  • Thin crowded inner growth to improve air circulation and light penetration
  • Prune to maintain desired shape immediately after flowering to avoid removing next year's flower buds
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA-verified non-toxic to cats

Humans: Non-toxic to humans; ripe fruit is edible when fully mature

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Garden Uses & Culture

Culture: Symbolizes longevity and purity in traditional Japanese garden design

Usage: Ornamental landscape tree; ripe red fruit can be used to make jams or jellies