Hemlock Trees

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Wholesale Canadian Hemlock Trees

A handsome, evergreen tree that dots the landscapes of North America, the Canadian Hemlock is perfect for screening or foundation planting. They grow slowly but thickly, sporting a dense body that will grace your lawn or garden. While hemlock is often considered poisonous (and indeed, some variations are harmful to humans), Canadian Hemlock is not. It is completely safe to plant in your lawn or garden.


Similar to larches and spruces, Canadian Hemlocks are a part of the pine family. As such, their leaves are like bundles of pine needles with a fascicle, or sheath, holding them together. The body of the Canadian Hemlock is thick and dense. They can stand from 50 to 70 feet tall and stretch out 25 feet wide. They grow in a pyramidal shape—narrow at the top and wide at the bottom—with small, brown cones hanging from their branches.

Facts About Canadian Hemlocks

Canadian Hemlocks are a popular option for many individuals looking to spruce up their garden. Nevertheless, before you commit, it’s best to learn everything you can about this striking tree.

They are NOT poisonous

As stated previously, many people mistakenly believe that all hemlocks are poisonous. While some variations are (one species of hemlock famously killed the Greek philosopher Socrates), the Canadian Hemlock is not among them.

They attract Wildlife

If you enjoy watching deer graze in your front yard or birds fly by your window, then Canadian Hemlocks are for you. These trees attract a wide variety of wildlife, including deer, songbirds, warblers, chickadees, and more.

They were used for leather and tea

Once upon a time, Canadian Hemlock was resourced for tannins and needles. The tannins would be used for tanning leather, while the needles were used to make tea.

They have a slower growth rate

Canadian Hemlocks have a slow to medium growth rate. This means that while they won’t sprout out of the ground like some species, they will grow steadily, nonetheless. Expect your hemlocks to grow anywhere from 12 to 24 inches each year.

How to Grow Canadian Hemlock

Much like our neighbors to the north for whom they are named, Canadian Hemlocks do best in colder climates. They thrive in USDA plant hardiness zones 3 through 7 and should not be planted outside of these areas. When planting, find an area with moist, sandy, well-draining soil and plenty of unfiltered sunlight. While they can tolerate some shade, it’s preferable that they get at least 6 to 8 hours of direct sunlight each day. Additionally, they cannot tolerate wind, so make sure they’re in an area well-protected from gusts.

How to Care for Canadian Hemlock

Canadian Hemlocks can tolerate tougher conditions. After all, they will thrive in the dead of winter. Nevertheless, they will not thrive in a drought. Canadian Hemlocks require plenty of water and proper irrigation. When they’re young, they’ll need regular watering, preferably using the slow watering technique. This is where you place a garden hose at the base of the tree and let it run for 15 to 20 minutes. As Canadian Hemlocks age, this process will not be necessary, as they will be better able to fend for themselves. They’ll still require watering during drier weather, but you won’t have to water them regularly. At most, give them well-balanced fertilizer (10-10-10) each year to provide your Hemlocks with the proper nutrients.

Common Uses for Canadian Hemlocks

Canadian Hemlocks are most frequently used as screening. In other words, their size and density turn them into living walls, preventing neighbors or onlookers from seeing into your home. You can place them along the edges of your property or by your windows for added privacy. They can also be easily pruned, allowing you to create artful hedges or foundation plantings. Many homeowners use Canadian Hemlocks for Zen or Contemporary garden designs.

Common Problems for Canadian Hemlocks

Other than keeping them properly hydrated, Canadian Hemlocks require little maintenance. However, like many tree species, they can be susceptible to certain problems. Cankers and needle rust are two diseases that the Canadian Hemlock is particularly susceptible to. However, the most common and serious problem that the Canadian Hemlock faces are wooly adelgid. These small insects flock to hemlock trees in Eastern North America. They feed almost constantly on the needles and branches. If left untreated, the infestation can sap the life out of your Hemlock, causing it to starve to death. Other insects and pests such as scales, mites, gypsy moths, and leaf miners can be attracted to your Canadian Hemlocks. Thankfully, store-bought insecticides can keep them at bay.

Contact Us Today

If you’d like to plant Canadian Hemlock trees for your home, garden, or business, then give us a call. Our stock of Canadian Hemlocks are guaranteed fresh and healthy upon delivery. Spring orders are scheduled for climate zone appropriate times, while fall orders are scheduled depending on the weather. To learn more about our stock of Canadian Hemlocks, contact us today!