White Oak


(Quercus Alba)

Long lived trees with a large canopy and horizontal branching when granted proper space. The White Oak is native to southern Ontario and the eastern United States. It can grown in a wide variety of habitats and is drought tolerant when established. The name 'White' is derived from its light grey bark and light coloured wood. Heavy, hard, and durable White Oak wood is valued for wine barrels (non-porous) and furniture.


Mycorrhizae Fungi are important for White Oaks. They do dramatically well with it present in the soil. Propagation can be challenging only because of the large tap root.


Dark green leaves with 7-9 rounded lobes and potential nice red or purple fall colour. Leaves persist on the tree through Autumn and Winter. Arrangement is alternate.


Fat, round scales present on the cap. Acorns are edible, but must be boiled many times prior due to the tannins. They are a favourite food for deer and other animals.

Twigs & Buds

Grey, with touches of brown and purple

Pests & Disease

Gypsy Moths (came in from China over 100 years ago) can potentially totally defoliate the tree. There is some natural control to attempt to slow them down such as Bacillus thuringiensis (BT) - a bacteria commonly sprayed from helicopters that destroys the Gypsy Moth larvae digestive system.