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As spring approaches in Niagara, at Tree Amigos, it’s time to think about whether, and how, we need to feed our gardens.

Let’s focus on trees and shrubs: It’s not absolutely necessary to fertilize them; lots of species get by just fine on their own. However, a rule of green thumb is that the younger the tree or shrub, the more vigorously it will perform if given some “food.”

Trees and shrubs that are mature may still need some feeding, but a lower dose of fertilizer may be appropriate, because they grow at a slower rate than the youngsters.

We talk about trees and shrubs “leafing out” in spring. It takes an enormous amount of energy for a plant to do this, so at Tree Amigos, we like to fertilize to make sure the plants will thrive.

If you fertilize your lawn in the spring, any trees and shrubs bordering it will make use of some of that fertilizer. However, it’s the balance of nitrogen and phosphorous that is important: The trees and shrubs won’t require as much nitrogen as the lawn does, while they’ll need more in the way of phosphorous.

The numbers on a bag of fertilizer indicate how much nitrogen, phosphorous and potassium it contains. They are always listed in the same order: N - P - K, with the K standing for potassium as indicated by its Latin name, Kalium, on the periodic table of the elements. (Chemistry in real life - who knew?) Fertilizer intended strictly for grass may not contain phosphorous, but may instead contain some inert ingredients that make it easier to spread.

The fertilizer Tree Amigos chooses for your trees and shrubs will match the needs of your garden. If your trees and shrubs produce lovely blooms, we will feed extra phosphorous to encourage blooming. For beautiful, leafy foliage, we’ll feed a little more nitrogen.

Spring fertilization for trees and shrubs can take place as soon as the plants show signs of new growth. Spring is approaching, so call Tree Amigos today to book your appointment! Call 905-937-5353, or request a quote by visiting the contact page on our website.