Tree Cotoneaster (Cotoneaster frigidus)

Tree Cotoneaster

Cotoneaster frigidus

Its cascading white blooms and red berries paint seasonal warmth. Deciduous ornamental tree; common name: tree cotoneaster.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Full sun to partial shade; full sun promotes maximum berry production, while partial shade is tolerated in hot climates
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Watering Water deeply when the top 5–7 cm of soil is dry; avoid overwatering to prevent root rot
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Temperature Hardy to -15°C; thrives in cool temperate climates; avoid prolonged exposure to temperatures above 30°C
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Characteristics

  • Leaf: Oval to lanceolate, dark green above, pale gray-green beneath; turns reddish in autumn
  • Flower: Clusters of small, five-petaled white blooms
  • Fruit: Bright red, spherical berries persisting into winter
  • Stem: Slender, brown branches with a slightly weeping habit
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Care Guide

Watering

Keep soil evenly moist during active growth; supplement water during extended dry spells

Fertilization

Apply a balanced slow-release fertilizer once at the start of growth. Do not over-fertilize, as excessive nitrogen can reduce berry production

Eggshell powder topdressing:Crush clean, fully dried eggshells into a fine powder; sprinkle 1–2 tablespoons around the base of the plant in early spring and work lightly into the topsoil
Pruning
  • Remove dead, diseased, or crossing branches in late winter before new growth emerges
  • Thin overcrowded branches to improve airflow and light penetration, which boosts berry production
  • Shape young trees to maintain a desired upright or spreading form; avoid heavy pruning in summer to prevent stress
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Toxic due to cyanogenic glycosides; ingestion can cause vomiting, diarrhea, and lethargy

Humans: Ingestion of large quantities of berries may cause mild gastrointestinal upset

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Garden Uses & Culture

Culture: Red berries provide critical winter food for wild birds; symbolizes seasonal abundance and resilience

Usage: Ornamental specimen tree, hedging, or wildlife garden planting