In Stock - Ships in 4 to 7 days
Audubon Native Sourwood and native birds
Native Sourwood red leaves
Native Regions map for Sourwood
Native Sourwood tree in fall
Native Sourwood green leaves on white
Native Sourwood green leaf on white
Native Sourwood red fall leaves on white
Native Sourwood red leaves on white
Native Sourwood red fall leaf on white
House Finch
Northern Cardinal
Eastern Bluebird
House Wren
Audubon Native Sourwood and native birds
Native Sourwood red leaves
Native Regions map for Sourwood
Native Sourwood tree in fall
Native Sourwood green leaves on white
Native Sourwood green leaf on white
Native Sourwood red fall leaves on white
Native Sourwood red leaves on white
Native Sourwood red fall leaf on white
House Finch
Northern Cardinal
Eastern Bluebird
House Wren

Growth Facts

  • Hardiness Zone: 5-9
  • Mature Height: 20-30' tall
  • Mature Width: 15-20' wide
  • Exposure: Full Sun/Part Shade
  • Spacing: 20-30' apart



  • May Benefit & Attract: cardinals, grosbeaks, wrens, sparrows, thrushes, orioles, finches, mockingbirds, thrashers, and vireos
  • The National Audubon Society protects birds and the places they need, today and tomorrow.
  • This bird-friendly native tree 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 trees safer for the birds and safer for the environment.
  • Hand Selected, Fresh from the Grower
  • Ships on our trucks because of the size of the tree - does not fit in a box

Audubon® Sourwood Treeling

Bower & Branch Trees and Plants

Oxydendrum arboreum

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® Sourwood Treeling?

Sourwood is a well-kept secret among tree afficianados. It does not grace a lot of homes, and that’s a shame, because it’s one fantastic tree! This elegant, slow-growing native has something to offer in every season—airy sprays of white flowers in summer, lava-red foliage in fall, and handsome, blocky bark the rest of the year. What’s more, it’s a pollinator paradise! Sourwood is not a secret among beekeepers—honey bees relish the blossoms, and from it they make what many consider to be the finest honey in the world. Native bees delight in the blooms, too.

Native from Pennsylvania to Florida and west to Indiana, the Sourwood Tree is a wonderful part of our country’s rich natural heritage. What makes it extra-special is that it is the only species of Sourwood (Oxydendrum) in the world. Gardeners in other countries covet our beautiful Sourwoods, but most Americans don’t even know they exist! This elegant tree can be found at forest edges, in fencerows, on streambanks, and atop gravelly ridges in the Southeast. It is one of the very first trees to turn color in the fall, so you might notice it along roadsides in September when driving there—even at 55 mph.

How to use in the landscape?

The fragrant white flowers of Sourwood are shaped like tiny, upside-down urns and appear in long, lacy bunches. The blooms bear some resemblance to Lily of the Valley flowers—hence, this tree’s other name, the Lily of the Valley Tree.

Why Bower & Branch?

At Bower & Branch, it’s our job to know and grow trees… especially big trees.

- Trusted, Experienced Growers

- Trusted, Knowledgeable Expertise

- Trusted Brand of Quality Trees Across the United States

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 never rush our trees to reach a ‘grade size.’ Our trees are grown for quality height, vigor, health and age.

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: 5-9

    Mature Height: 20-30' tall

    Mature Width: 10-15' wide

    Exposure: Full Sun/Part Shade

    Spacing: 20-30' apart

How To Plant

Sourwood is a tad fussy in the landscape, but it can be grown well when given what it needs to flourish. Sourwood is in the same family as Azaleas and Rhododendrons, and it relishes the same things that most of those plants do—acidic soil enriched with compost, regular irrigation, good drainage, and a topping of organic mulch. It also benefits from having access to a rich source of beneficial fungi in the soil, which the Bower & Branch™ Soil Enhancer and Fertilizer Element will supply. Site it in a position in full sun for the best flowering and fall color, although light shade is excellent, too. Disease and insect problems are few.

How To Water

Sourwood will appreciate watering deeply, and regularly during its first few years in the ground. Irrigate weekly, and especially during long dry spells or extreme heat after it’s established.

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: 5-9

How Does Shipping Work?

Bower & Branch Trees, the real BIG trees, don’t fit in a box! Our large trees require expert delivery and care, that means our large trees are shipped on Bower & Branch trucks. We are the only ones who know how to ship our big and bigger trees and plants with tender loving care.

We deliver your trees and plants directly to your driveway or curbside! Ask Bower & Branch about planting services and rates – we'd be happy to assist in installation.

*Big trees, Size A and larger, will take approximately 14 – 28 days to be delivered. - Size AA &AAA will be shipped directly to your home by a local common carrier.

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


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).


Reach out to a Plant Whisperer:

- Email:

- Phone: 866-873-3888

- Or via Online Chat


Bower & Branch offers a Three-Year Tree Guarantee on all of our trees, sizes A and up. Only the finest and the most experienced growers are awarded the opportunity to grow for Bower & Branch, so we offer the best guarantee available.

If your tree(s) should fail for any reason during the three-year guarantee period, you will receive an online gift card in the amount that you originally spent on the tree.* You can then use this online gift card for any Bower & Branch Purchase.

* Bower & Branch provides online gift cards in the amount of the original purchase price of the tree(s). The amount does not include any additional costs such as delivery, planting, tax, or any other products or services. Online gift cards can be applied towards any Bower & Branch purchase on and have no expiration dates. Bower & Branch does not guarantee tree replacement or availability of any desired product at any time. Cash refunds are not offered. Bower & Branch requires that all original tags and receipts are present when a guarantee request is initiated. The Bower & Branch Three-Year Guarantee only applies to plant material that has been planted in the ground. Container plantings are NOT covered.

At Bower & Branch, we do our best to honor all guarantee fulfillment requests to ensure customer satisfaction. However, we reserve the right to refuse the request if the required guarantee steps were not satisfied. Bower & Branch also reserves the right to deny any guarantee fulfillment request that is made as a result of animal damage, problems with plant hardiness and zone issues, or acts of nature (snow storms, hurricanes, and similar).


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Our 3-Year-Tree Guarantee

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