Pre-Order Now for Spring '23 Delivery
Savings Available!
Large Regal Prince Oak with dark green leaves growing in a residential neighborhood
Regal Prince Oak potted tree on white
Regal Prince Oak green leaf on white
Large Regal Prince Oak with dark green leaves growing in a residential neighborhood
Regal Prince Oak potted tree on white
Regal Prince Oak green leaf on white

Growth Facts

  • Hardiness Zone: 4-9
  • Mature Height: 40-50' tall
  • Mature Width: 15-18' wide
  • Exposure: Full Sun
  • Spacing: 15-30' apart



  • Hand Selected, Fresh from the Grower
  • Ships on our trucks because of the size of the tree - does not fit in a box

Regal Prince® Oak

Bower & Branch Trees and Plants

Quercus robur x bicolor 'Long' PP12,673

Regular price Sale price $472.50 Regular Price
Pre-Order Now for Spring '23 Delivery
Shipping included
How large is this tree? View the Size Guide.


Qty Savings Applied to All Multiple Tree Orders

Any Trees; Sizes XL and Above

Buy Any
2-5 Trees
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6-9 Trees
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10+ Trees
Savings of
$25 per tree
Savings of
$50 per tree
Savings of
$75 per tree
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Why the Regal Prince® Oak?

Regal Prince Oak is the tall, dark, and handsome tree your landscape has been dreaming of! This strong and sturdy columnar Oak tree is perfect as a specimen where horizontal space is limited, and a row of Regal Prince Oaks along your property line makes an impressive boundary marker and privacy screen. Closely planted, a border of trees will block views and dampen noise and wind. When the wind does blow, the glossy, deep green leaves will flutter gracefully, flashing their pale silvery-green undersides. This hybrid Oak tree adapts to many types of soils and planting conditions and grows just as happily in the country as it does along the mean streets of the city.

Tree hybridizers are patient people.  It can take decades to know if a certain cross is worth introducing.  Back in 1974, legendary tree man Earl Cully of Jacksonville, Illinois (best known for his much-loved introduction, Heritage® River Birch) collected acorns from a Columnar English Oak × Swamp White Oak cross he’d made.  He raised 1,000 seedlings from that batch; only 6 made the cut.  Regal Prince® was one of the chosen few, though it didn’t receive the final stamp of approval—a patent of its own—until 2002.  Worth the wait.

How to use in the landscape?

Always wanted an Oak tree but never thought you had the room for one? Want and ye shall receive! Strong, narrow and upright branching allows this Oak to be planted in tight, less than typical Oak tree planting locations. Dark green leaves and outstanding form makes this a very unique specimen tree for a landscape of any size.

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.

Growth Facts

    Hardiness Zone: 4-9

    Mature Height: 45' tall

    Mature Width: 20' wide

    Exposure: Full Sun

    Spacing: 15-20' apart

How To Plant

Regal Prince® Oak has the upswept look of a Columnar English Oak, but it has inherited many improvements from its American Swamp White parent.  Whereas English Oak’s leaves are often mildewed by summer, Regal Prince’s® stay squeaky clean.  Regal Prince® is also much more cold-hardy than purebred English Oaks (it has endured -30°F without a shiver), and its branches are stronger than just about any tree you can name, as its Swamp White parent has the strongest wood of any oak.  This is one sturdy, vigorous, handsome, long-lived, easy-care tree!

How To Water

Water twice weekly for the first 3-5 weeks; then water weekly for the remainder of the year until winter. When you water, water very slowly and very thoroughly. The water needs to reach to the bottom of the root ball and that takes time. Watering needs may be altered due to extreme weather conditions.

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.

How To Prune

A very low maintenance tree, therefore little pruning work is required. Prune as needed in late winter or very early spring while the tree is still dormant.

Planting Zones

Hardiness Zone: 4-9


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 XL (A) and bigger, will take approximately 2 to 4 weeks days to be delivered. - Sizes large (AA) and smaller (Treelings) will be shipped directly to your home by a local common carrier in a plant-safe box.

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 X-Large (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.