Wild Service Tree (Sorbus torminalis)

Wild Service Tree

Sorbus torminalis

Its autumn foliage blazes amber and scarlet, a woodland treasure. Deciduous tree; common name: wild service tree.

Partial sun
1–2/week
Moderate
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Plant Needs

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Sunlight Full sun to partial shade; tolerates dappled woodland shade but produces more vibrant autumn color in full sun
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Watering Water deeply during prolonged dry spells; drought-tolerant once established, avoid overwatering to prevent root rot
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Temperature Hardy to -20°C, withstands moderate summer heat; requires a period of cold dormancy in winter
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Characteristics

  • Leaf: Ovate to oblong with serrated margins, turns bright orange-red in autumn
  • Flower: Clusters of small, fragrant white five-petaled blooms
  • Fruit: Brownish-red pomes, ripening in late autumn
  • Stem/Bark: Smooth grey bark when young, developing deep fissures with age
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Care Guide

Watering

Water during extended dry periods to support flower and fruit development

Fertilization

Apply balanced slow-release fertilizer once in early spring. Avoid high-nitrogen fertilizers, which can promote excessive leaf growth at the expense of fruit production

Eggshell powder topdressing:Crush clean, dried eggshells into a fine powder and sprinkle around the base of the tree in early spring; avoid direct contact with the trunk to prevent pest attraction
Pruning
  • Remove dead, damaged, or crossing branches in late winter to maintain canopy health and air circulation
  • Thin overcrowded branches to improve light penetration to inner foliage
  • Trim suckers growing from the base to prevent unwanted growth and redirect energy to the main tree
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: Ingestion of large amounts of leaves or unripe fruit may cause vomiting and diarrhea, per ASPCA guidelines for related Sorbus species

Humans: Unripe fruit contains low levels of cyanogenic glycosides, which may cause mild gastrointestinal upset if ingested in large quantities; ripe fruit is edible

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Garden Uses & Culture

Culture: Associated with ancient woodland folklore; symbolizes resilience and seasonal change

Usage: Ornamental tree for autumn color; ripe fruit is edible for humans and provides food for wildlife