Field Elm (Ulmus minor)

Field Elm

Ulmus minor

Its dense canopy filters sunlight like a green umbrella. Deciduous shade tree; common names: Field Elm, Smooth-leaved Elm.

Full sun
1–2/week
Moderate
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Plant Needs

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Sunlight Full sun to partial shade; highly tolerant of urban pollution, compacted soil, and salt exposure
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Watering Water deeply during prolonged dry spells; drought-tolerant once fully established
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Temperature Hardy to severe winter frost; adapts to hot, dry Mediterranean summer conditions
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Characteristics

  • Leaf: Oval to obovate with serrated margins, rough upper surface and downy pale underside
  • Flower: Small, apetalous, greenish-red blooms clustered in pendulous racemes
  • Stem/Bark: Young stems have fine downy hairs; mature bark is grey-brown with deep vertical fissures
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Care Guide

Watering

Water deeply every 7–10 days during extended dry periods

Fertilization

Apply balanced granular fertilizer once in early spring. Avoid high-nitrogen fertilizers to prevent weak, susceptible new growth

Banana peel compost tea:Compost banana peels for 2–3 weeks, steep in water for 24 hours, dilute 1:20 for root drench to support healthy foliage growth
Pruning
  • Prune dead, damaged, or crossing branches in late winter to early spring before new growth emerges
  • Thin crowded inner branches to improve air circulation and reduce disease risk
  • Avoid heavy pruning to prevent dieback; maintain the tree's natural spreading canopy shape
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA-verified non-toxic to cats; no reported toxic reactions

Humans: Non-toxic to humans; no known adverse effects from ingestion or contact

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental shade tree; windbreak for agricultural fields; urban street tree