Tree Planting Program
Green your space
The City of Thorold provides an Urban Street Tree and Park Planting program where applicable. This program is designed to enhance our neighbourhoods and parks providing green space and shade, as well as, improving air quality for our community and visitors. Trees are planted in parks, on public boulevards, road allowances fronting residences and in circles where tree do not currently exist.
Tree planting is on a first-come first-serve basis. If you are in a brand-new neighbourhood, tree planting will begin once the subdivision is completed and assumed by the City of Thorold.
Please note: You are not guaranteed a tree if the location is not conducive for planting. For instance, there may be space constraints, underground services and/or overhead utility and electric lines that impede on the tree's growth. We will also try our best to provide a native species of tree depending on the conditions of the area.
Planting generally takes place during two seasons; Spring and Fall. The deadline for the Spring planting season is April 1 and the deadline for the Fall planting season is August 30. Depending on the demand, you may have to wait until the next planting season. Planting is also dependent upon weather conditions during these time frames. For instance, we avoid planting in extreme heat.
Please read in more detail about the varieties of trees that you have to choose from below. Please note: Small Decorative Trees are chosen by the City staff based on constraints within your residential area.
Want to re-naturalize your own garden with native plants?
Click below to download and reference the Niagara Peninsula Conservation Authority's guide book for the native plants found in the Region of Niagara.
| Small Decorative Trees |
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Canada Serviceberry This is a small tree, with many colony-forming erect stems often found growing in swampy, wet sites in eastern North America. It is best suited for wet sites in yards and landscapes. It has white blooms in early spring followed by oval green leaves and edible red fruit, attractive to birds, in mid to late summer. The fall colour is orange-red.
Wildlife Value It provides significant wildlife value throughout the growing season by offering early nectar for pollinators, host plant opportunities for butterflies, and abundant fruit for birds and mammals.
Dogwood This small tree reaches 10 m (32 ft) in height at a medium growth speed. It grows best in partial shade. It blooms clusters of 20 to 30 small yellow-green flowers surrounded by 4 white petal-like bracts. It features green oval leaves. This tree can grow in a variety of soils, including; rich, sandy, and loamy.
Wildlife Value The shiny, red, fleshy fruit grows in clusters and is a food source for a variety of species including; crows, robins, norther cardinals, wild turkey, squirrels, raccoons and white-tailed deer. Butterflies and bees are attracted to the dogwood flowers.
Eastern Red Bud This small sized tree reaches 6-9 m (20-30 ft) in height at a medium growth speed. It grows best in either full sun or partial sun with shade. It blooms in a display of rosy pink flowers in April. It features heart-shaped leaves that emerge a reddish color, turning dark green as summer approaches and then yellow in the fall. It makes a bold landscape statement, with its irregular branching and graceful crown. This tree can grow in a variety of soils including; acidic, alkaline, clay, loamy, moist, sandy, and well-drained.
Wildlife Value The early blossoms draw in nectar-seeking insects, including several species of early-season butterflies. Northern Bobwhite and a few songbirds, such as chickadees eat the seeds. It can be used for nesting sites and nesting materials, and it also provides shelter for birds and mammals.
Paper-barked Maple This small sized tree reaches 6-9 m (20-30 ft) in height with an oval crown. It grows best in either full sun or partial sun with shade. Winter and spring are highlighted with cinnamon-colored, exfoliating bark that is accentuated by light snow, while summer brings delicate leaves with a bluish cast that turn bronze in fall. This tree prefers moist and well-drained soil.
Wildlife Value It attracts insect pollinators; butterflies and bees.
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| Large Shade Trees |
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American Beech
Wildlife Value It is host to many insects, including; ants, aphids, wasps, and several species of moths and butterflies. Thus, it is popular for insect-eating birds. American beech nuts contain fats and nutrients and are a food source for wildlife, such as; game birds, bears, chipmunks and squirrels, raccoons and opossums and deer.
Basswood This large-sized, slow-growing tree reaches 35 m (115 ft) in height. It can grow in full sun or full shade. The leaves are large and heart-shaped with jagged edges. The flowers are fragrant yellow that hang from the centre of a leaf-like structure. They produce a round greyish brown fruit. It prefers rich, well-drained soil.
Wildlife Value It provides food and habitat to many wildlife species; white-tailed deer browse basswood stems, several small mammal and bird species eat basswood berries. Bees are very attracted to basswood flowers because they bloom in midsummer when few other trees are in bloom. Basswood trees are prone to developing hollows that provide nesting habitat and shelter for birds and small mammals.
Black Gum This large-sized, slow-growing tree reaches 20 m (65 ft) in height. It grows best in full sun to part sun. The leaves are shiny green ovals with smooth margins. It produces small fleshy blue-black fruit with inner stones. The flowers are greenish-white flowers that grow in bunches and bloom in late Spring. It prefers loamy, slightly acidic soils, but is tolerant of clay, gravel and sand.
Wildlife Value Black gum fruits are a good food source for many species, including; fox, pileated woodpecker, ducks and wild turkey. White-tailed deer and beavers eat black gum twigs and leaves. The flowers attract bees and insects. Larger trees can have cavities that wildlife use for shelter.
Common Hackberry This medium-sized, fast-growing tree reaches 9-15 m (30-50 ft) in height. It grows best in full sun. It is easily distinguished by its cork-like bark with wart-like protuberances. The leaves are distinctly asymmetrical and coarse-textured. It produces small fruits that turn orange-red to dark purple in the autumn, often staying on the trees for several months. It prefers rich moist soil and can easily withstand strong winds, pollution, heat, salt, and tough soils.
Wildlife Value It is one of the best trees for providing food and shelter to birds and small animals. It is host to at least five different species of butterfly, including the Tawny Emperor, the Snout Butterfly, the Morning Cloak, the Question Mark, and the rare Hackberry Emperor. Its fruits are attractive to many birds (especially in the winter), including Cedar Waxwings, woodpeckers, mockingbirds, and robins. The leaves also provide food for many caterpillars.
Common Maples This large, slow growing tree can reach 38 m (125 ft) in height. It grows best in full sun and provides ample shade. In the Fall, the leaves turn vibrant shades of crimson, gold, and yellow, and some varieties are well known for their ability to produce delicious Maple syrup. Most maple trees are adaptable to many soil types, including clay but they prefer a well-drained and moist soil.
Wildlife Value Maple trees provide important habitat and food sources for wildlife. Birds, squirrels, and other animals feed on the seeds, while deer and other herbivores browse on the foliage. The tree's dense canopy also offers shelter for various bird species.
Elm This large-sized, slow-growing tree reaches 30 m (98 ft) in height. It grows best in full sun but tolerates partial shade. The leaves are green oval shaped and grow in an alternate, simple arrangement. It produces winged seeds that mature in spring. The flowers are greenish-yellow that grow in small clusters of 3 to 15. It prefers rich, well-drained soil.
Wildlife Value It provides a food source and nesting habitat for several birds and small mammals. It is also host to butterflies, moths and other insects.
Kentucky Coffee Tree This medium-sized, moderately fast-growing tree reaches 25 m (82 ft) in height. It grows best in full sun. It is a unique tree with large, woody pods and very large leaves made up of smaller leaflets. It is an exceptional Winter ornamental with its bold form, contorted branching, unique bark and decorative clusters of large pods rattling in the wind. In late Spring, leaves emerge as a striking pink-bronze color. These large airy leaves mature and become a dark bluish-green. This tree's yellow fall color contrasts nicely with the clusters of dark, maturing pods. It grows best in well-drained soils, including acidic, alkaline, loamy, sandy and clay soils.
Wildlife Value This tree provides nesting sites for birds. The seeds are toxic so do not benefit wildlife.
Northern Catalpa This large-sized, fast-growing tree reaches 30 m (100 ft) in height with a narrow, open, irregularly rounded crown and spreading branches. It has large, heart-shaped leaves and large clusters of fragrant, white flowers. The long, interesting seed pods persist through the winter. Northern catalpa is very adaptable to adverse conditions, but has weak wood and branch structure. It grows best in part shade. It grows best in moist, well-drained soil, but is tolerant of alkaline soil, dry sites, road salt, and wet sites.
Wildlife Value It attracts insect pollinators; butterflies and bees.
OaksBur Oak This large, slow growing tree reaches 30 m (98 ft) in height. It grows best in full sun because it is intolerant of shade. Once Bur Oak is established it is difficult to transplant. This tree can grow in a variety of soils, including sandy or silty loams and heavy clay.
Wildlife Value This tree produces yellowish-green flowers which attract songbirds, upland ground birds, and water-birds. Small mammals such as chipmunks, red and gray squirrels enjoy the acorns in the Fall.
Red Oak This large-sized moderately fast-growing tree reaches 30 m (98 ft) in height. It grows best in full sun and it is intolerant of shade. Leaves have 7 to 9 pointed lobes separated by deep, rounded notches. In the fall, the leaves of this tree are a brilliant red colour. It prefers well-drained loams and slightly acidic soil.
Wildlife Value It produces yellowish-green flowers and acorns which attract songbirds, upland ground birds, and water-birds. Small mammals such as chipmunks, red squirrels and gray squirrels enjoy the acorns in the Fall.
White Oak This large-sized, slow-growing tree reaches 35 m (115 ft) in height. It grows best in full sun. It grows bright green leaves with paler green undersides. The leaves turn red-purple in the fall before falling off. Leaves have 7 to 9 rounded lobes separated by deep, rounded notches. Acorns take one year to fully grow and drop off in the fall once they are ripe. It prefers well-drained loams and slightly acidic soil.
Wildlife Value The acorns are one of the best sources of food for wildlife and are gathered, hoarded and eaten by birds, hoofed browsers and rodents. Leaf buds also are eaten by several bird species, and all parts of the tree are a favorite food for deer.
Shademaster Honey Locust This medium-sized, fast-growing tree reaches 13 m (43 ft) in height. It grows best in full sun. Thorns can cover bark which becomes furrowed and ridged with age. It forms a graceful vase to oval-shaped outline of its canopy. These pinnately compound, green leaflets are very light and airy which provide great dappled shade. Greenish white flowers emerge in the spring with the leaves. Long seedpods form in the late summer. In the fall, the leaves turn yellow and the seedpods turn brown, falling to the ground. This tree grows best in moist, well-drained soils, loam or clay but also tolerates a range of soils.
Wildlife Value White-tailed deer, squirrels, rabbits, opossums, crows, starlings, Bobwhite Quail, and raccoons will eat the bean pods and is a good source of nutrition for them in early fall to winter. Thickets of this tree can also provide excellent wildlife cover since the thorns will help keep predators out. The flowers are a good source of nectar for bees and other pollinators. It is a host plant for several moth and butterfly caterpillars.
Sycamore This large-sized, moderately fast-growing tree reaches 30 m (98 ft) in height. It grows best in full sun to partial shade. The Sycamore is noted for its exfoliating bark and large trunks. The outer layer of bark is a standard brown color that peels away in strips to reveal a creamy-white, smooth bark. The lobed leaves are a medium green color that turn yellow/brown in fall. In Fall, inconspicuous flowers produce fuzzy fruit balls that remain until winter. The fruit balls disperse into white tufts that carry seeds. This tree grows best in moist, well-drained soil, and wet soil. It tolerates alkaline soil, clay soil, dry sites, occasional drought, occasional flooding, and wet sites.
Wildlife Value The dense foliage offers excellent nesting and roosting opportunities for birds. Additionally, the seed balls, while not a primary food source, are eaten by some birds during the winter months.
Tulip Tree This large, fast-growing tree reaches 30 m (98 ft) in height. It prefers deep, moist fertile soils and and sun or partial shade. It is intolerant to flooding and also sensitive to drought or heat. It is tolerant of Junglonase, the chemical emitted by the Black Walnut tree. It blooms unique tulip-shaped flowers that have 6 yellow and orange petals, borne upright at the ends of twigs.
Wildlife Value It attracts songbirds and small mammals. It is also the larval host for Eastern Tiger Swallowtail butterfly.
Yellowwood This medium to large, fast-growing tree reaches 15 m (50 ft) in height. It has a Vase-shaped crown with broad, almost horizontal, spreading branches. It blooms long pendulous wisteria-like clusters of fragrant white flowers. The fruit is a pod 5–8 cm long, containing 2-6 seeds. It prefers moist well-drained fertile soils and full sun. It is tolerant to alkaline soil, clay soil, dry sites, road salt, and wet sites.
Wildlife Value The yellowwood tree provides significant wildlife value by attracting pollinators, offering food sources, and creating valuable nesting and shelter habitats. Though it is a relatively rare species in the wild, its ecological benefits make it a valuable native tree for wildlife gardens and landscapes.
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Choosing Your Tree
After you have read through all the choices of trees above, choose your two favourite species of tree, fill out the online tree request form and submit. Once your request is received, a City worker may arrange a visit to your property or drop off an educational door hanger and determine the best type of tree to plant in your location.
Online Tree Request Form
Caring for your Tree
Once a tree is chosen and planted, you will be required to care for the tree. The City will provide instructions on caring for that particular tree so that it thrives in it's environment. Below are some general tips to follow:
- Keep lawn mowers and string trimmers away from the base of the trunk to avoid damaging the bark
- Water, but do not over water your tree. Provide a deep watering twice a week during dry periods. If a water-bag is provided, please fill it once a week to ensure the tree is adequately watered.

- Please leave the wood chips in place. Wood chips protect the tree from damage and reduce water loss allowing water and nutrients to penetrate the soil more easily
- Do not pile soil or grass clippings over the mulch
- If additional mulch is needed, do not mound the mulch towards the trunk like a pyramid
- Do not encourage your children to climb the tree
Cutting, Trimming, Pruning or Removing the Tree on Public Property
Property owners are not permitted to trim trees on City property in front of or behind their homes. Any concerns about a tree's health or concerns for public safety, such as low lying limbs over the sidewalks or roads can be reported to the City by filling out the online form below. Please select Tree Maintenance from the drop down menu provided.
Tree removals will be determined by arborist. If it is identified for removal, the homeowner will be provided a letter. There will be a scheduled date of removal based on priority and may change due to other emergencies within the City. Depending on the size of the tree and available staff resources, the tree may be removed in two or three stages. These are as follows:
- The crown of the tree may be removed first, leaving the trunk.
- The trunk may be cut down to the ground level in one visit. If the trunk is left standing, the City will be back to remove it at a later date.
- The crew will then return to grind out the stump, remove the grindings and backfill with soil and seed.
Once all completed, the property owner can request a new tree as outlined above. Please Note: Even though request may come in throughout the year, tress are planted in the spring and fall to ensure a better survival rate.
Homeowner Alert
Roots from a tree can clog or damage house laterals when the pipes are not maintained. Homeowner's should know the location of their sewer house lateral and have a 4" cleanout installed if one does not already exist. The replacement cost for the house laterals damaged by tree roots can vary from $1,000 to $5,000. Routine maintenance of the sewer house lateral can prevent these costly repairs.
Learn more at the button below >>>
Sewer House Lateral vs. Tree Roots
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