Photos of Quercus r. x. b. 'Long'
Courtesy of Jay Daley, Sunleaf Nursery, LLP

Quercus r. x b. ‘Long’ – Regal Prince Oak

This introduction is an improvement over the other columnar oaks that are available. Regal Prince will reach an estimated height of 45” and a width of 18’ feet in twenty years. The branch structure is much stronger and consistently fuller than other columnar cultivars of oak. The foliage is glossy bright green on the top and a soft light green color on the underside giving the leaves a nice two tone color contrast. The foliage is very mildew resistant, so much so that I have never seen powdery mildew on this plant. In late summer, the long acorns turn lime green for 10 days to two weeks and are ornamental for this period of time. In fall both the leaves and acorns turn dull yellow, then brown.

The tree works well standing alone in smaller yards, used to frame an area to be highlighted, or as a visual screen. It is very columnar when young and begins to reach it’s width potential with age. The ideal location for this tree is in a moist but well drained soil with a pH of 6.5.

Jay Daley is an "Ohio Certified Nursery Technician-Grower" working for Sunleaf Nursery LLP, a wholesale nursery specializing in deciduous shade and ornamental trees, located in Madison, OH.

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