If you’re looking for a tall narrow tree don’t forget about Green Pillar Pin Oaks (Quercus palustris ‘Green Pillar’). Different than the species, this form has very tight, upward growing branches giving it a skinny but dense habit. A striking tree for an accent at the corner of a building and effective in a row as a wind break. The leaves are glossy dark green that turn russet red in fall, then turn brown and persist into winter dropping before re-emerging in spring. Plant in full sun for best habit and fall color. They prefer rich, moist, acid soil and will tolerate periods of wet soil. At maturity they’ll grow about 50-60′ x 12-15′ wide.
4-4.5″ seen here, 2.5-3″ also available.

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