Wednesday, May 1, 2024

Trees

 Make a statement — plant a tree. If it's only what, where, when, and how that's stopping you, perhaps I can help.

Maybe you've already decided on what type of tree you wish, possibly influenced by childhood memories of lazy afternoons spent beneath a huge maple, or swinging from the branch of a sturdy oak. There's nothing wrong with those choices; however, it may take half a lifetime before those trees grow
large enough for you to relive those dreams, and that's if you stay in your home longer than the Canadian average of only a few years. The beauty of planting a tree, though, is the legacy you will leave. Someday, someone may relax in the shade or swing from the branches of your tree.

The ultimate size of any tree you plant is a serious consideration. Most building lots are small these days and can barely accommodate the house, let alone a tree, and planting large varieties too close to buildings, driveways, or neighbouring properties is a common error. Keep in mind, too, that a tree with a 25 cm wide trunk requires a soil surface of about 20 square metres to stay healthy. Fortunately, nurseries stock a wide range of smaller trees that are more suited to smaller gardens.

Before choosing a tree, consider the conditions around where it will be planted — things like sun and shade or type of soil. Most trees will adapt to local soil conditions, but some will have preferences as to how wet or how dry, how sandy or how clay-like the soil is. Try to select a tree with a shape that will complement the desired function. 

Do you need a  tree that will act as a screen or a windbreak, one that's dense enough to provide summer shade, or one that's airy and open like the honey locust with its lovely lime green foliage? If you have this information before heading out to the nursery or tree farm, it will be easier for knowledgeable staff to make recommendations. Early spring is a good time to plant deciduous trees whilst they're dormant and more so for evergreens. Fall can be a better time to plant deciduous as it allows them to direct growth to the roots before winter. In spring there's a greater demand for water in summer when the tree has leafed out.

After purchasing a tree, be kind to it when handling and transporting. Lift the tree by the container or root ball and not by the trunk. If you can't plant it right away, leave the tree in a sheltered corner out of the sun, but don't forget to water it.

Digging a good hole for a new tree can be a challenge. If the ground is very dry, give it a thorough soaking ahead of time and digging will be much easier. Planting depth is most important. The tree should be planted with the root flare visible --  where the roots leave the trunk. It may be not be visible in the container if it was planted too deep. Always dig the hole wider rather than deeper. Make it bowl-shaped not pail-shaped, up to three times the diameter of the container and loosen up the soil only a little at the bottom, leaving a slight mound on which to set the root ball so that the tree won't settle.

Remove the tree from its container at the last minute before planting and check the roots. If wrapped in burlap or in a fibre pot, remove as much as possible after the tree is in the hole. Current advice is to shake off or even wash off the roots because the material it was planted in will be nothing like the local soil. Check the roots and if they've been circling in the container, loosen them and spread them  out.

When filling in the hole, don’t amend the soil. Enriching a small area around the tree with large amounts of manure and peat moss isn't advised as it will only discourage the roots from spreading. There is no need to add fertilizers. Pack the soil in carefully and water well, but don't drown the roots, especially if the soil is slow to drain. Continue to water as needed until your tree is established, keeping the soil moist but not soaking wet. Mulching with wood chips will help retain moisture, so put down a layer
about 50-70mm deep and do not pile it against the trunk.

Unless the tree is especially tall or in a windy location where it's going to be whipped about, it isn't essential to stake or anchor the tree. If you feel it may be necessary, keep it lower on the trunk and anything wrapped around should be soft — no tight ropes or wire. A piece of loose fabric or old pantyhose is good, but guys, ask first.

And that's the what, when, where, and how, of planting a tree. As for the why, it's because trees are essential to our survival. Care for them and they'll care for us. They are the lungs of the planet.

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