Quercus palustris

Pin Oak

A medium-sized tree with persistent autumn foliage more suitable to Australian conditions than most oaks.

Features: Rusty orange-red autumn colour, fading to persistent brown foliage. Stately form and shape. Good for difficult and variable sites.
Applications: A useful street tree for difficult sites. Parks and larger gardens. Seasonal shade.
Description The Pin Oak occurs naturally in swamp areas but has a well-proven tolerance for moderately dry conditions and urban environments. It has a distinctive appearance with horizontally layered branches and deeply lobed leaves with good autumn colour. Leaves turn rusty-orange to red-purple then remain on the tree as brown foliage through winter until replaced by new green growth in spring. This long-lived tree is good for bringing a more stately presence to difficult and variable sites.
Availability: Champion Lakes : 45L, 100L
Mature height: 25-30
Mature spread: 15-20
Canopy: Loosely pyramidical with strong central leader and lower branches more pendulous. Moderate to dense shade (seasonal).
Growth rate: Slow to moderate
Cautions: Roots are shallow and sensitive to paving.
Tolerances: Flooding. Urban environments and air pollution. Drought tolerant. Somewhat wind resistant.
Sun demands: Sun to light shade
Soil demands: Prefers moist, rich, well-drained soils but handles both flooding and drier sites. Acid to mildly alkaline - avoid strongly alkaline soils.
Water demands: Occurs naturally on wet sites but copes with drier
WA Waterwise Visit Website
Native or Exotic: Exotic
Leaf habit: Deciduous
Family: Fagaceae
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Additional references and recommended reading:

Boland, D. J. et al (2006) "Forest Trees of Australia" 5th Edition, Australia: CSIRO Publishing.

Gilman, Edward F. (1997) "Trees for Urban and Suburban Landscapes", Florida: Delmar Cengage Learning.

Lorenz von Ehren "Von Ehren Manual" 2nd Edition, Hamburg.

Rushforth, K. (2001) "Easy Tree Guide, Britain and Europe", London: Aurum Press.

Urban Forests Ecosystems Institute, "SelecTree - A Tree Selection Guide" retrieved from http://selectree.calpoly.edu/treelist.lasso 2009.

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