Arboretum

AESCULUS PAVIA – BUCKEYE, RED

The Red Buckeye was chosen as a 1995 Gold Medal Plant by the Pennsylvania Horticultural Society for being a plant of exceptional merit, but underused in landscaping. Red Buckeye will flower well in rather dense shade but takes on its best form when grown in full sun with some afternoon shade on moist, well-drained soil. …
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PLATANUS OCCIDENTALIS – SYCAMORE, AMERICAN

This tree is simply too large and messy for most residential landscapes unless you are desperate for shade and have lots of spare time to rake mountains of leaves. They are best suited for soils which are moist and do not dry out. Dry soil can lead to short life for this wet-site-tolerant tree. Sycamore …
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FRAXINUS AMERICANA – ASH, WHITE

Existing trees do not tolerate soil compaction or construction injury. The tree appreciates good soil and is probably not a good choice for poor, urban soils. It tolerates high soil salt concentrations originating from de-icing salt applications. Plants in containers tolerate moderately-high soil salt solutions up to about 6 mmhos/cm according to the saturated media …
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PLATANUS X ACERIFOLIA – PLANETREE, LONDON

This tree is over-planted in many areas and should be used less often. Planetree prefers moist soil but will tolerate drier conditions. In some years leaves scorch when the summer is dry. It is an urban tolerant tree standing typical city conditions nicely. The tree compartmentalizes decay fairly well and resists breakage. Planetrees are among …
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ACER RUBRUM – MAPLE, RED

This tree is over-planted in many areas and should be used less often. The tree makes the best growth in wet places in the southern portion of its range but adapts nicely to drier locations in the northern and central portion of its range where rainfall is greater than 40 inches. In fact, it can …
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CORNUS SPP. FLORIDA ‘RUTCAN (CONSTELLATION®)’ – DOGWOOD, SPP. ‘X RUTCAN (CONSTELLATION)’

The ‘Rutcan’ (Constellation registered trademark) (P.P.#7210) grows best on moist, loamy, well-drained soil (not heavy clay) with mulch or leaf litter accumulated over the roots. It is highly resistant to the common dogwood borer and moderately to highly resistant to Discula, the incident of dogwood anthracnose. Dogwood is not particularly drought- or heat-tolerant, requiring irrigation …
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AMELANCHIER SPP. – SERVICEBERRY, SPP.

With a native habitat of wet bogs and swamps, Serviceberry should be grown in full sun or light shade on moist, well-drained, acid soil. Plants will rarely require fertilizing. Plants suffer on poor compacted soils when the root zone is restricted by urban structures such a walks and streets. Trees perform best with plenty of …
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SASSAFRAS ALBIDUM – SASSAFRAS

Sassafras should be grown in full sun or partial shade, preferably on moist, well-drained acid soil but it will tolerate drier, rocky sites, where it is sometimes found in the wild. It often forms thickets in old fields perhaps due to an allelopathic chemical produced by the tree – Boxelder, elms, and Silver Maple are …
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ULMUS PARVIFOLIA – ELM, CHINESE

Chinese Elm will grow best in full sun on a wide range of well-drained soils, adapting easily to extremes in pH and tolerates urban heat. Some trees suffer in zone 5, especially in 5A. Trees will look their best, though, when grown in moist, well-drained, fertile soil but they adapt to drought and the extremes …
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ULMUS AMERICANA– ELM, AMERICAN

American Elm should be grown in full sun on well-drained, rich soil but it adapts to a wide variety of soils. Tolerant of clay, loam or sand, acid or alkaline soil, it is no wonder this tree was so popular in the early part of the century until Dutch elm disease (DED) began its march …
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