Arboretum

GLEDITSIA TRIACANTHOS – HONEYLOCUST

The tree has no particular soil preferences and is useful in dry or alkaline areas, although its native habitat is along stream banks. Although a legume, nitrogen-fixing bacteria (rhizobia) have not been associated with the root system. It tolerates compacted, poorly aerated soil and flooding for a period of time once it is well established …
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PSEUDOTSUGA MENZIESII – DOUGLAS-FIR

Douglas-fir provided lumber for homes and other buildings for much of the northern part of the country but is now surpassed by other conifers. It is common in the Pacific northwest into California in the mountains and grows well along the coast from Washington to northern California. Trees there grow to 8 or 10 feet …
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ULMUS X SPP. – ELM HYBRID

Elm hybrids are a cross between various species of American, Asian and European elms. Designed to be highly resistant to Dutch elm disease, elm hybrids are medium to large trees that can grow to a height of 60 feet tall at maturity. The leaves are oval, with doubly serrated toothed margins. The flowers and fruit …
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LIQUIDAMBAR STYRACIFLUA – SWEETGUM, AMERICAN

Although it grows at a moderate pace, Sweetgum is rarely attacked by pests (except for a trunk canker), and tolerates wet soils, but chlorosis is often seen in alkaline soils. Trees grow well in deep soil, poorly in shallow, droughty soil. Sweet Gum is difficult to transplant and is often planted from containers or transplanted …
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TILIA CORDATA – LINDEN, LITTLELEAF

Littleleaf Linden grows in sun or partial shade and will tolerate alkaline soil if it is moist, and it transplants well. No wonder they are so popular among landscape architects, foresters and arborists. There are a number of cultivars but they are often difficult to tell apart; they probably function similarly in the landscape. Many …
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PHELLODENDRON AMURENSE – AMUR CORKTREE

Amur Corktree grows rapidly and prefers to be grown in full sun on deep, rich soil but will tolerate any soil, acid or alkaline. Tolerates wet soil and drought provided there is plenty of open soil space. Once highly recommended as a street and urban-tolerant tree, it does not appear to hold up to the …
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CELTIS OCCIDENTALIS – HACKBERRY, COMMON

Hackberry grows naturally in moist bottom land soil but will grow rapidly in a variety of soil types from moist, fertile soils to hot, dry, rocky locations in the full sun. Hackberry is tolerant of highly alkaline soil, whereas Sugarberry may not be as tolerant. It is wind, drought, salt and pollution tolerant once established …
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CARYA CORDIFORMIS – HICKORY, BITTERNUT

Grows nicely in clay soil that is submerged for long periods after it rains. Grows poorly in areas submerged all the time. This tree should be used more often in urban areas that are poorly drained. Trees resist breakage in ice storms compared to many of the more finely branches trees. This is among the …
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ROBINIA PSEUDOACACIA – LOCUST, BLACK

Able to tolerate drought, salt, and poor soil, Black Locust will grow in full sun or partial shade on almost any soil acid or alkaline except that which is permanently wet. It is used often for reclaiming strip mine sites and fixes nitrogen. It tolerates high soil salt concentrations originating from de-icing salt applications better …
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ZELKOVA SERRATA – ZELKOVA, JAPANESE

The tree will tolerate most soil types, including those with a pH to about 7.8, but prefers a moist deep loam. It transplants best in spring. Established trees are fairly drought-tolerant, requiring little irrigation unless located in sandy soil. It makes a wonderful street and shade tree and is almost pest free. A nice canopy …
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