Jacqueline Hillier Elm (Ulmus × hollandica 'Jacqueline Hillier')

Jacqueline Hillier Elm

Ulmus × hollandica 'Jacqueline Hillier'

A densely branching, slow-growing miniature elm, celebrated as a living sculpture in gardens and bonsai art.

Full sun to partial shade; prefers bright light for best foliage density.
2/week
Easy
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Plant Needs

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Sunlight Full sun to partial shade; prefers bright light for best foliage density.
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Watering Moderate watering; keep soil consistently moist but not waterlogged.
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Temperature Highly cold tolerant; thrives in temperate climates.
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Characteristics

  • Leaves: Small, ovate to elliptic, 2-3 cm long, dark green, with finely double-serrate margins and a characteristic asymmetrical base;
  • Stems: Densely branching, twigs are slender, zigzagging, and often develop corky ridges with age;
  • Habit: Shrubby, rounded to spreading, slow-growing, often multi-stemmed.
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Care Guide

Watering

Water regularly to maintain even moisture, especially during dry spells.

Fertilization

Apply a balanced slow-release fertilizer as new growth appears.. Fertilize monthly during active growth if potted.

Compost Tea:Steep aged compost in water for 24-48 hours, strain, and use the liquid to water the base. Avoid applying to foliage.
Pruning
  • Prune in late winter or early spring before new growth begins;
  • Remove dead, diseased, or crossing branches to maintain a healthy structure;
  • Highly responsive to pruning, making it excellent for bonsai styling or topiary.
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: Non-toxic per ASPCA guidelines; safe around felines.

Humans: Non-toxic; no known adverse effects from handling or accidental ingestion.

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Garden Uses & Culture

Culture: Widely appreciated in European and American horticulture for its architectural form and suitability for miniature landscapes and bonsai.

Usage: Ornamental shrub, bonsai specimen, rock gardens, and low hedging.