Audubon Native Blackjack Oak and native birds
Native Blackjack Oak
Native Blackjack leaves and flowers on white
Native Blackjack Oak leaves and nuts on white
Native Regions map for Blackjack Oak
Northern Flicker
Gray Catbird
Blue Jay
White Breasted Nuthatch
Audubon Native Blackjack Oak and native birds
Native Blackjack Oak
Native Blackjack leaves and flowers on white
Native Blackjack Oak leaves and nuts on white
Native Regions map for Blackjack Oak
Northern Flicker
Gray Catbird
Blue Jay
White Breasted Nuthatch

Growth Facts

  • Hardiness Zone: 6-9
  • Mature Height: 40-50' tall
  • Mature Width: 30-40' wide
  • Exposure: Full Sun/Partial Shade
  • Spacing: 30-40' apart


  • May Benefit & Attract: cardinals & grosbeaks, wrens, woodpeckers, sparrows, thrushes, orioles, waxwings, nuthatches, finches, mockingbirds & thrashers, crows & jays, vireos
  • The National Audubon Society protects birds and the places they need, today and tomorrow.
  • This bird-friendly native trees provides food and shelter for local and migrating birds and other wildlife
  • All Audubon® branded trees are grown 100% Neonic-free by Bower & Branch, making these plants safer for the birds and safer for the environment.
  • Hand Selected, Fresh from the Grower
  • Ships in a plant-safe designed box

Audubon® Blackjack Oak Treeling

Bower & Branch Trees and Plants

Quercus marilandica

Regular price $119.00
In Stock - Ships in 4 to 7 days
Shipping included
How large is this tree? View the Size Guide.
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Why the Audubon® Blackjack Oak Treeling?

You can bet on Blackjack Oak to be a hit with your backyard birds! This small to medium-sized shade tree (much smaller than other Oaks) has much to offer your avian friends. Its dense, twiggy canopy provides a safe space for songbirds to nest in. The tree also holds on to its dry leaves in winter, giving birds protection while roosting during the dormant season. Most importantly Blackjack Oak serves up a buffet of nutritious insects to hungry birds. Caterpillars, especially, are critical to many birds’ diets, and Blackjack Oak has these in spades. Jackpot!

Blackjack Oak is a fighter, a scrappy little tree that toughs it out in the worst situations. It grows on the poorest, driest, rockiest, sandiest sites over much of the eastern U.S., in a range that stretches from New Jersey to North Florida and west to Kansas and Texas. In these challenging sites, it will often grow no taller than 20 feet! When given some love, it develops into a taller, more symmetrical, more graceful specimen, though growth is still quite slow. Because of its pokey growth, very few nurseries are willing to take the time to produce it. We are so happy to be able to offer it!

How to use in the landscape?

Many Oaks don’t offer much in the way of fall color, but Blackjack Oak is generally pretty colorful. Most trees develop nice amber-gold, orange, or rusty-red tones when the days get chilly. It is colorful in spring, too, when the new leaves emerge with a pink cast.

Why Bower & Branch?

We do the hard part. Our trees and plants are grown and cared for by only the best, local growers for years before they find their forever home in your landscape. Bower & Branch is known for having hard-to-find, substantial sizes and selection. The quality of our trees and plants are consistent in health and vigor—always ready for immediate impact in your garden and instant curb appeal. We believe in empowering homeowners with the truth about strong, healthy and structurally sound plants that are grown to perform in the ground after they leave the nursery for home delivery, always fresh inventory from the grower

Audubon is devoted to protecting birds and the places they need, while Bower & Branch is devoted to the growth of true native trees and plants–no cultivars or hybrids. Together, we strive to unite communities in conservation and inspire individuals to cultivate a better world for birds starting in their own backyards, balconies, or patios. By guiding and recommending trees and plants truly native and beneficial to your region, we can really start to make a difference.

What is the definition of Native?

“In the United States, a native plant is defined as one that was naturally found in a particular area before European colonization. Native plants are the foundation of a region’s biodiversity, providing essential food sources and shelter for birds, especially those threatened by the changing climate. Since native plants are adapted to local precipitation and soil conditions, they generally require less upkeep, therefore helping the environment and saving you time, water, and money.” – The National Audubon Society

Learn how you can help birds in your home and community through Audubon’s Plants for Birds program.

Audubon® is a licensed and registered trademark of the National Audubon Society. All rights reserved.

Growth Facts

    Hardiness Zone: 6-9

    Mature Height: 40-50' tall

    Mature Width: 30-40' wide

    Exposure: Full Sun/Part Shade

    Spacing: 30-40' apart

How To Plant

Plant your Blackjack Oak in an area that will receive full sun—this tree does not like shade at all. It also struggles in alkaline soils, and the leaves will become chlorotic (yellow) there. Choose this tree only if your soil is naturally acidic. 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.

How To Fertilize

Incorporate Elements Starter Plant food granular form into the soil when planting. If planting in spring or summer, start fertilizing late fall using Elements Starter Plant food granular form on an annual basis each late fall. Continue this for the first three years to get your plant well established.

Planting Zones

Hardiness Zone: 6-9


How Does Shipping Work?

Size AA & AAA (our Treelings, Shrubs, Bushes, and Perennials) will be shipped directly to your home by a common carrier. Ships in a plant-safe designed box within 5-7 business days.

How Does Sizing Work?

The size of our trees have nothing to do with the container size like you may find elsewhere–big doesn't mean just height - it’s also vigor, age, and overall health.. Other online retailers are going to tell you that a plant is a seven gallon, that means nothing to your tree or plant (or you.)

Our trees for sale online are graded on large, x-large, and even bigger sizes. This is because our trees are sized by their age—the higher the letter, the more mature the tree. The age determines the trees’ overall height, size of the trunk and the overall branch density.

All of these characteristics are what you should be looking for when choosing a tree for immediate impact and instant curb appeal. Our extra-large tree and plant sizes are sure to wow you and your neighbors!

See the size guides below.

How Trees are Shipped
Size 4XL D Trees Size 3XL C Trees Size 2XL B Trees Size XL A Trees Size LARGE AA Trees

Our Guarantees

90 DAY SATISFACTION GUARANTEE: Bower & Branch guarantees customer satisfaction within all product groups and sizes. If for any reason you are not satisfied with the product or experience, you have 90 days from the original date of purchase to request a replacement of the purchased product(s). How? Reach out to a Plant Whisperer: - Email: - Phone: 866-873-3888 - Or via Online Chat

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Our 3-Year-Tree Guarantee

We stand behind our trees and plants; our goal is your success.