Shade and Ornamental Trees: Quercus (Oak)
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Quercus acutissima
Sawtooth Oak has dark, lustrous foliage that is serrated with bristle-like teeth at the ends of the parallel veins (sawtooth). The leaves are often confused with those of Castanea (Chestnut). Old leaves will persist through the winter. Dark brown bark becomes fissured, cork-like as the tree matures. This oak is adaptable to harsh conditions.
Quercus bicolour 'American Dream'
A tough and adaptable new cultivar 'American Dream' has a superior branching than native Quercus bicolour. Heat tolerant and adaptable to drought and wet soils.
Quercus bicolor
Swamp White Oak has very shallow lobed foliage compared to the other lobed oaks (Q.alba and Q. macrocarpa.). Leaves are lustrous, dark green above and tomentose beneath (velvety). The stems of its fruit are longer and the acorns usually appear in pairs. The bark on its branches will peel/flake. Drought tolerant, but prefers "swampy" locations and is well adapted to wet, poorly drained locations.
Quercus coccinea
Scarlet Oak has an upright, broad somewhat spreading crown. Dark green leaves, 15cm long, with deep cut, pointed lobes that turn bright scarlet in the fall and it is one of the last trees to change colour. Leaves persist on tree through winter. Good tree for boulevard planting due to its upright branching. Q. coccinea is more tolerant of high pH than Q. palustris and grows in dry soils in its natural habitat. Helpful "OakID": The sinuses(indentation) between the lobes of the Scarlet Oak form a "C" whereas those of the Pin Oak form a "U". The acorns of Scarlet Oak are half covered by the cap.
Quercus dentata 'Carl Ferris Miller'
C.F. Miller Emperor Oak is related to the Hungarian oak, Q. frainetto, which is part of the white oak group. This is a spectacular tree with a vigorous upright habit. Huge, green leaves (30cm x 20cm) with wavy, rounded lobes are deep green above with fine, light brown hairs (pubescence) beneath. They turn to a rich mix of yellow, orange and burgundy in fall. Leaves lighten to light brown and persists on the trees through winter. Drought tolerant but avoid soils with a high pH.
Quercus dentata 'Pinnatifida'
Cutleaf Japanese Emperor Oak is a very rare oak with unusually deeply cut very narrowly lobed, unusually large (to 25cm) foliage! Very thick twigs are first covered with hair before they become bare. Bark on the trunk is rough and dark grey. Young leaves are hairy on both sides, the top will become a matt green. More of a squat chunky habit than a regular tree form but with deeply cut foliage. Slow to grow initially but then will take off. Will take shade.
Quercus ellipsoidalis
Northern Pin Oak is native to the Great Lakes Region. A hardy tree, related to Pin Oak. Tolerant of wet soil, of dry, sandy and somewhat alkaline soil. Adaptable to poor, urban conditions. New leaf growth is a fuzzy pink turning green and in fall becomes red to bright maroon under the right conditions. Leaves persist on tree through winter. Acorns, 1/3-1/2 covered by cap, are an appreciated food source by wildlife
Quercus frainetto Forest Green
Forest Green is a Hungarian Oak Selection (J. F. Schmidt introduction) with a strong central leader. A beautiful, symmetrical tree with outstanding glossy dark green foliage (rounded lobes) throughout the summer. Drought resistant.
Quercus garryana
Garry or (Oregon) White Oak is a native tree of the Pacific Northwest named after Nicholas Garry of the Hudson Bay Company. In BC it is mostly seen on Vancouver Island and the Gulf Islands. Glossy foliage is deeply lobed. Fall colour is usually yellowish brown. Older trees develop thick, grooved scaly bark. Tree will tolerate wet winter soils and summer droughts. Note/lore: carrying a Garry Oak acorn is said to preserve your youthful appearance!
Quercus x robur Heritage
Heritage hybrid oak is a crossing of Q. robur x Q macrocarpa = Q. x macdanielii 'Clemons'. A vigorous grower (unusual for an oak!). Tolerant of urban conditions and adaptable to wet or dry locations. Heritage's foliage is mildew resistant, glossy dark green (silvery beneath) and lobed; fall colour is not memorable. Mildew resistant.
Quercus 'Ilex'
Quercus ilex is an evergreen tree well suited for coastal conditions. This attractive specimen or street tree will offer year round interest. The Holly Oak will do well in a variety of planting conditions from sandy loam to heavy clay and adapts well to various ph from acid to alkaline.
Quercus macrocarpa
Burr Oak is an impressive, huge oak when seen as a single specimen. Native from Nova Scotia to Manitoba and South into Texas. Leaves are from 10-30cm long and up to half as wide. Irregularly lobed and shaped like a bass fiddle. Produces large acorns (2-4cm) which are covered with a mossy scale or bur around the edge of the cup. Flaky, grayish-brown bark. Adaptable to many soils.
Quercus macrocarpa Urban Pinnacle
Urban Pinnacle is a narrow cultivar of the Bur Oak with a strong central leader. Its lobed, glossy dark green foliage is resistant to both mildew and anthracnose. Very small acorns make this Bur Oak cultivar street-friendly!
Quercus palustris
Pin Oak has a broad, pyramidal crown with a strong central leader and "layered" horizontal branching, giving the tree an elegant appearance. Lower branches tend to droop towards the ground. Medium sized, glossy, dark green leaves are sharply pointed and deeply lobed ("U-shaped sinus between lobes). In fall, leaves turn yellow, red then russet-brown. Persistent leaves hang on through the winter. Smooth gray brown bark , main trunk has only shallow ridges.
Quercus palustris Green Pillar
Green Pillar Oak is a unique fastigiated form of Pin Oak from Princeton Nurseries. Glossy green leaves turn red in fall.
Quercus phellos
Willow Oak is named for it's long, smooth-edged narrow willow-shaped leaves. Round to oval shape with upswept branches. Once established extremely tolerant of heat, drought and stress.
Quercus x bimundorum Prairie Stature
Prairie Stature Oak is(aka 'Midwest') a hybrid between English Oak and White Oak which has proven to be very cold hardy and the foliage promises to be mildew resistant. Emerald-green, semi-glossy, leathery foliage turns reddish in fall and retains leaves (tannish) into winter.
Quercus x robur Crimson Spire
Crimson Spire is a hybrid variety of White Oak (Q. alba) and English Oak (Q. robur). The White Oak parent gives it bluish dark green, mildew resistant foliage which turns red in the fall. Leaves persist on tree through winter. Its tight columnar form comes from the English Oak parent. (J. F. Schmidt introduction)
Quercus x robur Kindred Spirit
Kindred Spirit Oak is a cross of Q robur var. fastigiata x Q. bicolor resulting in a very columnar tree (more so than Regal Prince) with a strong mildew resistance. Leaves persist on tree through winter. Another Cully/Heritage Trees introduction. Strong mildew resistance.
Quercus robur
English Oak is a stately, big tree with broad rugged upright spreading branches. Dark green, almost blue or olive green on top and lighter beneath. Leaves are shallowly lobed (round) and have an auriculate base ("earlobe"). In fall the leaves will drop when still green or turn a yellowy brown. Bark is grayish-black and deeply furrowed. Very adaptable to different conditions.
Quercus x robur Regal Prince
Regal Prince Oak is a Swamp (Q. bicolor) and English oak (Q. robur var. fastigiata) hybrid cross with desirable narrow columnar to oval form. Foliage is bright green, glossy and resistant to powdery mildew and borers, turning yellow in fall. Regal Prince drops all leaves in fall. Good mildew resistance.
Quercus robur 'Skinny Genes'
The Skinny Genes Oak is the narrowest variation of the English white oak hybrids. It has a columnar form and is covered in glossy dark green foliage. During autumn the leaves turn a striking bright yellow.
Quercus robur Skyrocket ('Fastigiata')
Skyrocket is a J. F. Schmidt selection of the common fastigiate English Oak with more tighter form and great mildew resistance especially in warmer climates. Leaves persist on tree through winter. An introduction geared towards Southeastern conditions.
Quercus rubra
(Northern) Red Oak is a rapid growing, large tree (among the largest in North America) with a broad rounded crown. Leaves are dark green with deep lobes and sharp points. New leaves are red in spring, green in summer and turn dark red or orange in fall. A very beautiful and stately tree.