Arboretum

ILEX OPACA – HOLLY, AMERICAN

The Pennsylvania Horticultural Society selected this plant as one of the Gold Medal Plants for 2001. This award recognizes exceptional woody plants hardy from New York to Washington, D.C. Growing well in full sun to partial shade, American Holly should be located on fertile, well-drained but moist, slightly acid soils below 6.5 pH. Berry production …
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CORYLUS COLURNA – FILBERT, TURKISH

Turkish Hazel is an extremely tolerant tree, surviving hot summers, cold winters, wind, drought, and heavy or alkaline soils with ease. Plants should be located in full sun and, like most other trees, watered regularly for several years after transplanting. They are reportedly very difficult to transplant but once established they then become quite drought-tolerant …
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PINUS SYLVESTRIS – PINE, SCOTCH

The plant will tolerate dry soil and exposed sites forming an open, picturesque, asymmetrical canopy. It is a good tree for reclamation sites, is tough and durable, and is very popular as a Christmas tree. Needs to be sprayed with green dye to give it a desirable green color for the holiday season. It is …
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BETULA PAPYRIFERA – BIRCH, PAPER

The tree is best adapted to moist, cool sites with deep, loose soil with irrigation provided in times of drought. Protect from all day sun by locating the tree so it is shaded for part of the afternoon in the summer and irrigate in the dry summer weather. Plants perform best on north facing slopes …
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PICEA ABIES – SPRUCE, NORWAY

Norway Spruce tolerates most soils and transplants easily if balled and burlapped or potted in containers. Trees subjected to drought are much happier if they receive periodic irrigation, although they tolerate drought well. They are well suited for wind breaks and tolerate ice loads well in winter storms. The root system is shallow and dense …
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STYPHNOLOBIUM JAPONICUM – JAPANESE PAGODATREE

A medium to large deciduous tree from the legume family, the Japanese pagoda tree is native to eastern Asia. They typically grow to be 50-75 feet tall at maturity, with an upright spread and broadly rounded crown. The Japanese pagoda tree has a pinnately compound leaf, which retains its green color even into the fall. …
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ULMUS RUBRA ‘PENDULA’ – ELM, SLIPPERY ‘PENDULA’

Ulmus rubra, commonly called slippery elm, is a medium sized, coarse-textured, somewhat weedy, deciduous tree that typically grows to 40-60’ (less frequently to 100’) tall with a vase-shaped to broad-rounded crown. It is distinguished by its downy twigs, red-hairy buds (particularly noticable in winter) and slimy red inner bark (rubra meaning red). It is native …
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TAXODIUM ASCENDENS – PONDCYPRESS

Pondcypress is found in stagnant pools of water whereas Baldcypress tends to be more common along stream banks. Both grow in water or on more well-drained soils. They tolerate drought better than could be expected for a tree so common to wet soils. In fact, trees grow faster in a well-drained, moist soil than they …
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ABIES CONCOLOR – FIR, WHITE

Though native to the Rocky Mountains clear to California, this may the the best fir for the eastern US. White Fir reaches a mature height of 75 feet or more but is often much smaller in the landscape, 40 to 50 feet . It has a pyramidal shape and horizontal branching with the lower branches …
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