Hardy Pecan vs Swamp White Oak - TreeTime.ca

Hardy Pecan vs Swamp White Oak

Quercus bicolor

Carya illinoinensis

Swamp White Oak
Hardy Pecan

The Swamp White Oak is a medium-sized deciduous tree native to North America. It is commonly found in swamps, lowlands, floodplains, and near streams and lakes. The leaves are two-toned, green on top and silvery-white on the undersides, adding to the visual appeal of this popular shade tree.

In the fall, the Swamp White Oak produces acorns which are an important food source for wildlife. It also provides a habitat for the larvae of many butterfly and moth species, playing an important ecological role. Although its growth is slow in the first few years, once the roots are established, it can achieve faster annual growth.

Hardy Pecan trees are known for their edible nuts that ripen in late autumn. They can be eaten raw or cooked and can be used in a wide range of baked goods. If stored properly in a cool, dry location, they can be kept for up to 6 months in their shell. Trees tend to bear nuts at maturity, which occurs around 6 -10 years. The size and form of this tree also makes it a great shade or feature tree for your landscape.

For nut production, it is recommended that at least 2-3 are planted so that cross pollination can occur. In colder areas it is likely that nut production will be limited, especially in locations with late frosts and shorter growing seasons.

If exposed to high winds, Hardy Pecan is known to lose branches, but these can be used as firewood, or to smoke foods with a hickory flavour. Finding seed or seedlings of this tree is rare in Canada.

Note: plant this tree once. It will not respond well to transplanting.

Swamp White Oak Quick Facts

Hardy Pecan Quick Facts

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Zone: 4a
Zone: 5a
Height: 15 m (50 ft)
Height: 24 m (80 ft)
Spread: 15 m (50 ft)
Spread: 15 m (50 ft)
Moisture: normal, wet
Moisture: normal
Light: partial shade, full sun
Light: full sun
Hybrid: no
Hybrid: no
Catkins: no
Catkins: yes
Flowers: yellow
Nuts: acorns
Nuts: oval, brown
Growth rate: medium
Growth rate: slow
Life span: long
Life span: long
Suckering: none
Suckering: none



Toxicity: mildly toxic to humans, cats, and dogs

Other Names: bicolor oak
Other Names: carya pecan, faux hickory, hicoria pecan, illinois nut, illinois nut tree, pecan hickory, soft-shelled hickory, sweet pecan