Arizona Sycamore (Platanus wrightii)

Arizona Sycamore

Platanus wrightii

Broad, lobed leaves catch sunlight like scattered umbrellas. Deciduous shade tree; common name: Arizona Sycamore.

Full sun
1–2/week
Moderate
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Plant Needs

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Sunlight Full sun to partial shade; tolerates intense desert sunlight when provided adequate water
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Watering Deep, infrequent watering; allow the top 30 cm of soil to dry completely between watering sessions
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Temperature Hardy to -10°C; tolerates high summer heat up to 40°C with sufficient soil moisture
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Characteristics

  • Leaf: Palmate, 3–5 lobed, bright green above and pale gray-green below; turns yellow-brown in fall
  • Flower: Tiny, spherical male and female flower clusters; greenish-yellow in color
  • Bark: Exfoliating, mottled tan, cream, and gray; peels to reveal smooth, lighter underbark
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Care Guide

Watering

Deep water every 7–10 days; increase frequency to every 5 days during prolonged heatwaves

Fertilization

Apply slow-release granular fertilizer once at bud break. Use a balanced, low-nitrogen fertilizer to avoid excessive foliage growth

Composted banana peel tea:Steep fully composted banana peels in water for 24 hours; dilute 1:20 with water before applying as a root drench to support leaf health
Pruning
  • Remove dead, damaged, or crossing branches in late winter before new growth emerges
  • Thin crowded inner branches to improve airflow and reduce disease risk
  • Avoid heavy pruning; maintain the tree's natural spreading crown shape
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats; no known toxic compounds

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

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Garden Uses & Culture

Culture: N/A

Usage: Shade tree for urban parks, residential landscapes; helps control soil erosion along stream banks