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Audubon® Post Oak
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Slow and steady wins the race! Post Oak is a long-lived, slow-growing shade tree that eventually flourishes into a magnificent specimen. It is a legacy tree par excellence that you plant for your grandchildren and for their grandchildren. Plant it, too, for the local wildlife! Countless squirrels, Jays, and Woodpeckers will enjoy the acorns, and songbirds will devour the caterpillars and other insects that feed on Oak Tree foliage. Birds will be drawn to Post Oak’s craggy branches and will be happy to build their nests there. A wonderful gift to future generations of people and wildlife.
May Benefit & Attract: Woodpeckers, jays, and songbirds.
Take Birds Under Your Wing
New! Introducing our bird-friendly collection of Audubon® Native Plants & Trees
- Better for Birds, 100% Neonic-Free
- Not Available in non-native regions, states or counties (see Native Regions map)
Bower & Branch is proud to grow Audubon® Native Plants for Birds in partnership with the National Audubon Society to help birds and other wildlife thrive.
- The National Audubon Society protects birds and the places they need, today and tomorrow
- This bird-friendly native plant provides food and shelter for local and migrating birds and other wildlife
- Your purchase and planting of this native flora directly supports Audubon’s conservation mission and impact
- Learn how you can help birds in your home and community through Audubon’s Plants for Birds program
- Audubon Native Plants & Trees are free of neonicotinoids and exclusively grown by Bower & Branch
Audubon® is a licensed and registered trademark of the National Audubon Society. All rights reserved.
Size AA (2-3' tall) container grown
- Hardiness Zone: 5-9
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Content with poor, dry soil, this tough shade tree survives where other trees struggle. It copes with shallow, rocky soil, as well as sites that flood in spring and bake in summer. In these challenging places, Post Oak stays smaller than most Oak Trees and develops a weather-beaten outline. In more hospitable sites, it grows larger, but still has loads of character. The national champion, in Alabama, looks like something out of a fairy tale and stands 95 feet tall and 122 feet wide. Post Oak is found throughout the southeastern states, the lower Midwest, and into New England as far north as Massachusetts.
As you can guess from the name, Post Oak was used in the past to make fence posts. The wood is hard and rot-resistant. It was also used as mine timbers and as firewood. A sad fate for such a noble, slow-growing tree!
How to Grow
Plant your Post Oak in an area that will receive full sun—this tree does not like shade at all. Good drainage is important as well. If your soil stays soggy after a rain, you should select another type of Oak, such as Swamp White Oak or Overcup Oak. Little pruning will be necessary, but if you must prune, do so only between December and February. The fungal disease Oak Wilt can strike when Oaks are pruned during active growth. A member of the White Oak Group, Post Oak is less susceptible to Oak Wilt than members of the Red Oak Group, but it is still vulnerable.
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