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Central Campus Tour


Tree Details

Hardiness zone:
5 – 9
60 – 100
50 – 75
Upright and semi-conical
Best in sun or partial shade
Deep, moist, slightly acidic soil preferable
1 diameter, round and prickly
Landscape use:
Excellent lawn, park, or street tree but needs larger area for root development; most useful for shade, framing, or background in large areas
Native range is Connecticut, south to New York to Florida, southern Ohio, Indiana, Illinois, Missouri, to Texas and Mexico; introduced 1681
Pests: sweetgum webworm, caterpillars, cottony-cushion scale, sweetgum scale, walnut scale; Problems: leaf spot, iron chlorosis in high pH soils
Significant Features:
Attractive all year; fruit causes troublesome litter in fall and winter; twigs frequently winged with cork


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Arboretum Consultant

Michael A. Dirr

Dr. Michael A. Dirr is a horticulturist associated with the University of Georgia. Dr. Dirr has published over 300 scientific and popular publications and has authored seven books, including A Manual of Woody Landscape Plants: Their Identification, Ornamental Characteristics, Culture and Propagation and Uses. It has sold more than 250,000 copies.

Arboretum Consultant

Richard C. Webel

Richard C. Webel is managing director of Innocenti & Webel LLC, a renowned firm that specializes in architecture, landscape architecture and strategic planning. He collaborated on A Landscape of Continuity: The Practice of Innocenti & Webel, published by Harvard University in 1997. In addition to presenting lectures throughout the United States, he has also appeared on CNBC and CNN.