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Regal Prince Oak Tree for Sale - Buying & Growing Guide

  • Regal Prince Oak
  • Regal Prince Oak
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Quercus × warei 'Long' REGAL PRINCE

While most oaks have broad spreading canopies, the Regal Prince Oak Tree breaks from that norm by maintaining a narrow and upright form throughout its life. This cultivated species, known as Quercus × warei 'Long' REGAL PRINCE, also reaches impressive heights of 60 feet tall or more while holding a lovely set of glossy deciduous leaves. Along with its striking form and attractive foliage, the Regal Prince Oak Tree is also a durable plant that resists disease and survives in the cold. 

  • The Regal Prince Oak Tree stands out among oaks for its narrow growth habit. 
  • The leaves of this tree are bright and glossy with wavy margins. 
  • This tree has good disease resistance and admirable cold hardiness.
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Plant Care

Sunlight

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The Regal Prince Oak Tree may survive in partial shade but should grow in full sunlight.

Watering

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Water this tree weekly during establishment. When mature, water during droughts and heat waves.

Fertilizing

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Use a balanced fertilizer, or one that is nitrogen-rich in the early spring each year.

Planting and Care

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by John Haryasz | Horticulture Writer and Landscape Designer – last update on October 20, 2022

Planting instructions

To plant your Regal Prince Oak Tree, begin by digging a hole that is as deep as the root ball is tall and at least twice as wide. It also helps to loosen the root ball and the sides of your planting hole to make it easier for the tree’s roots to spread through the soil. Place your plant in the hole and ensure that the trunk is vertical. Then, backfill with soil that is loose and nutrient-rich while watering with a garden hose. Finally, cover the planting area with a layer of mulch to help maintain soil moisture.

Watering and nutrients

Water your Regal Prince Oak Tree about once per week during the first growing season to help the plant establish itself in its new growing location. Once your tree has established itself successfully, its water needs will decrease dramatically. Typically, a Regal Prince Oak Tree can survive on rainwater alone and will only need water during droughts or extremely hot weather. You can fertilize this plant once per year using either a balanced fertilizer or one that is higher in nitrogen.

Pollination

The Regal Prince Oak Tree, like all oak tree varieties, is a plant that carries both male and female flowers and can pollinate itself. This plant will bloom in spring with flowers that are not ornamentally valuable. Those flowers will release pollen into the air where it will find its way to the female flowers. As such, oak trees do not rely on any pollinator species to facilitate pollen transfer. Once wind pollination is successful, the Regal Prince Oak Tree will develop a set of acorns.

Pruning

The best time to prune a Regal Prince Oak Tree is during the late winter or early spring as the plant is exiting its dormant phase and entering a period of active growth. During that time, you should remove any branch that is dead, damaged or diseased. For the Regal Prince Oak Tree, it is also important to thin the canopy as the upright nature of this plant can cause the branches to cross one another and to be quite crowded.

Pests, diseases and animals

Like most oak trees, the Regal Prince Oak Tree can be vulnerable to both pests and diseases. However, this plant does show better disease resistance than most oaks and is particularly capable of avoiding powdery mildew. Regarding pests, the Regal Prince Oak Tree remains vulnerable to leaf miners, oak skeletonizers and scale insects. Despite those risks, the Regal Prince Oak Tree does not typically have issues with borers. Occasionally, infections including gall, canker, blight and rot can also arise.

Achieving maximum results

Overall, the Regal Prince Oak Tree is a very resilient plant that is useful in many challenging growing conditions. For instance, this plant is adaptable to many soil types including both wet and dry soils. The Regal Prince Oak Tree is also very capable of avoiding damage from excessive ice and snow accumulations. That trait, along with hardiness down to zone four, makes the Regal Prince Oak Tree an excellent choice for those in colder climates.

FAQs

What are the parent species of the Regal Prince Oak Tree?

The Regal Prince Oak Tree does not share a similar growth habit to most other oak trees, and part of the reason for that is that this oak variety is not a naturally occurring species. Instead, the Regal Prince Oak Tree is a hybrid plant that arose as a cross between the swamp white oak and the columnar English oak. That hybridization resulted in a tree with an upright form and leaves with wavy margins.

How much space does a Regal Prince Oak Tree need?

While the Regal Prince Oak Tree is quite narrow compared to most other oak trees, it is still a very large plant that will need a considerable amount of growing space. When you plant this tree, you should ensure that there are at least 20 to 25 feet of space in all directions. That amount of space will allow this plant to develop its canopy fully without running out of room.

Where is the best place to plant a Regal Prince Oak Tree?

The narrow form of a Regal Prince Oak Tree makes it a suitable plant for some difficult planting situations. For instance, this tree is ideal if you wish to create shade in a space that is relatively narrow. The Regal Prince Oak Tree is also one of the best plants to use when lining paths or roads since the narrow canopy is less likely to cause overcrowding than other plants.

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Mature height
40-60 ft.
Mature width
20-25 ft.
Sunlight requirement
Full Sun
Growth rate
Moderate
Botanical name
Quercus à - warei 'Long' REGAL PRINCE
Shipping exclusions
AZ,CA,FL,LA,OR, WI
Grows Well In Zones
4-9
map
Growing Zones: 4-9 i Growing zones help determine if a particular plant is likely to grow well in a location. It identifies the average annual minimum winter temperatures across the U.S. provided as a map by the USDA.
(hardy down to -10°F)

Regal Prince Oak Tree

Quercus × warei 'Long' REGAL PRINCE
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