Arizona Sycamore

Platanus wrightii

Native to:
Mexico, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Platanaceae
Genus:
Platanus
Species:
Platanus wrightii
USDA Symbol:
PLWR2

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Tree
Height:
2500 cm
Light Requirements:
Full Sun
Drought Tolerance:
Low
Bloom Months:
mar,apr,may

Wildlife Benefits

Caterpillars:
★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)

Keystone Species Ranking

Caterpillar Keystone:
★★★★☆ Butterfly & moth species supported by this genus (NWF)

Host Plant for Caterpillars

Gelechia desiliens, Phyllonorycter felinelle, Synanthedon mellinipennis, Synanthedon resplendens, Western Tiger Swallowtail (Papilio rutulus)

Garden & Ecology Notes

Wildlife Value:
birds, small mammals
Deer Resistant:
Yes
Fall Color:
yellow, brown
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts vigorously from the root crown following fire or flood damage. Thick bark provides some fire resistance on mature trees.

Soil Requirements

Soil Type:
well-drained, sandy or rocky soil
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
native to riparian areas, tolerates periodic flooding

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–90 days
Germination Time:
14–30 days
Notes:
Seeds germinate best with light and consistent moisture. Fresh seed germinates more readily than stored seed.

The above propagation data sourced from Claude AI

Pre-treatment: Mounding method: Harvest stems layered during the previous year just above the soil surface while dormant in early spring. Remove any residual media from the previous year's mound to allow new stems to emerge from the crown of stock plants. By late May, new stems are 0.5 m high and the mounding process is initiated using soilless media composed of pumice, peat and bark mix, commercial peat and perlite mix, and pumice alone. Use inverted bottomless containers to contain the mound.

Establishment: P. wrightii is found along streams from 600 to 2000m in elevation, from northern Mexico to southern New Mexico and Arizona. The propagation method is mound layering of stock plants established in field nursery. Stock plants are seedlings in 1 gallon pots planted into sandy loam soil and heavily fertilized in May. Surface soil is amended with sulfur to prevent chlorosis; alkalinity of irrigation water is 150mg/L as CaC03 with a ph of 8.0. During establishment, stock plants are flood irrigated on a weekly basis during the growing season.

Source: npn.rngr.net