Notable trees are publicly-viewable specimens distinguished by their size, form, shape, beauty, age, rarity, or other distinctive features. This page is organized by location so that people can choose to visit a number of special trees in an Ottawa neighbourhood or an area in Eastern Ontario. If you’re interested in seeing a particular species, visit the Species page of interest to check the list of trees and locations.
Ottawa – South
Ulmus rubra – Slippery Elm – Mature, open-grown specimen near Mooney’s Bay. Park at the Terry Fox Athletic Centre to view this tree on Riverside Drive.
Ottawa – West
Juglans cinerea – Butternut – Emerge from dark, old cedar woods into an open clearing dominated by this magnificent old Butternut. Measured at 86 cm (34 inches) DBH with a broad canopy and negligible canker, this tree reminds us what Butternuts in the forests of yore used to be like. Find this tree in Hewitt Park in Kanata.
Quercus macrocarpa – Bur Oak – Measured at 1.24m (4.07 ft) DBH, this stately tree stands on Hines Road in a high tech business park in north Kanata at the old Blue Heron trailhead. Follow the trail south as it flanks a ravine in which Shirley’s Brook flows to see four other exceptional Bur Oaks. Continue across the hydro cut to enter Trillium Woods.
Ulmus thomasii – Rock Elm – Mature, open-grown specimen in a rural Kanata field on the northeast side of Second Line Road, just southeast of Wild Acres Lane, near the South March Highlands. This specimen showcases the classic Rock Elm shape.
Ulmus thomasii – Rock Elm – A mature, double-trunk specimen growing in the South March Highlands Conservation Forest by the North Dogsled Trail near #37.
Salix amygdaloides – Peachleaf Willow – Growing at the northern edge of its range, this 71.6 cm DBH Peachleaf Willow on the northern shore and western end of Petrie Island is the largest specimen known in Ottawa. Note the upright form that is typical of Peachleaf Willows. This willow is not on the trail system and can only be accessed by walking west along the beach. Other large Peachleaf and Black Willows can be found in this area of the island.
Outside of Ottawa
Ulmus thomasii – Rock Elm – Largest known specimen in Eastern Ontario, measuring 1.55m DBH and 28 meters high. It’s located in Merrickville on Main Street East near Elgin. Stand on the other side of Main Street, cock your head back, and prepare to be amazed.
Pinus strobus – Eastern White Pine – Measured at over 46 meters (> 150 feet) in height, the tallest tree in Ontario grows in Gillies Grove, a 56 acre old growth forest in Arnprior west of Ottawa. This White Pine grows with other 130 foot plus tall pines along with huge Hemlocks and Sugar Maples. Its DBH is 93 cm (2017), indicating that the tree put most of its energy into growing upward, likely competing for sunlight with other trees.