Wych Elm (Ulmus glabra)

Wych Elm

Ulmus glabra

Broad, arching canopy frames quiet woodland charm. Deciduous large tree; common name: wych elm.

Full sun
1–2/week
Moderate
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Plant Needs

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Sunlight Full sun to partial shade; tolerates moderate shade in natural woodland settings
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Watering Water deeply during prolonged dry spells; established mature trees are moderately drought-tolerant
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Temperature Cold-hardy to -20°C; thrives in cool temperate climates and avoids extreme heat stress
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Characteristics

  • Leaf: Ovate to obovate, rough-textured, double-serrated margins, dark green above and paler beneath
  • Flower: Small, purplish-red, clustered in pendulous racemes that appear before new leaves
  • Stem/Bark: Mature bark is grey-brown and fissured; young stems have fine, soft hairs
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Care Guide

Watering

Water young saplings weekly during dry periods; established trees need occasional deep watering

Fertilization

Apply a layer of well-rotted compost or balanced slow-release fertilizer once. Do not over-fertilize, as excessive nitrogen can reduce disease resistance

Composted banana peel tea:Steep fully composted banana peels in water for 24 hours, dilute at a 1:20 ratio for root drenching; discard solid peels to avoid pest infestations and odors
Pruning
  • Remove dead, damaged, or crossing branches in late winter to maintain structural integrity
  • Thin dense inner canopy to improve air circulation and reduce disease risk
  • Avoid heavy pruning in summer, as open cuts may be vulnerable to Dutch elm disease
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirms no toxicity to cats

Humans: No known toxic effects on humans

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Garden Uses & Culture

Culture: Associated with ancient temperate woodlands; symbolizes resilience and long-term stability

Usage: Ornamental shade tree; durable wood used for furniture, tool handles, and craftwork