• Cherry Tree -Black Knot

    My cherry tree has a big knob on one of the branches I was wondering what it is. It is in full sun. We have clay soil. I think we are in zone 5 here in Schomberg ON…

  • Japanese Maple With Swollen Trunk

    Hello, I have a red, bloodgood ,Japanese maple tree that is about 15 years old, and 14 ft. in height. There is a swelling around it’s trunk, about a foot above ground, with some small vertical cracks in the bark…

  • Winterize Banana Corm

    Hey This was my first year storing Banana plant(matured 8ft tall) in dark cold cellar. In june, i found stem got brown and mushy so chopped it to the corm. The corm is hard and size of a soccer ball….wondering…

  • Pear Rust

    How to prevent pear rust from happening each year? Is there chemical spray can be use before it starts. If so, when can I spray? Also how to prevent decease on leaves of plum trees that make leaves curled with…

  • Pandanus veitchii

    Hi, I have been writing to you for sometime now regarding my Pandanus Veitchii Plant. My big plant that I received in 2015 is still going strong. My three shoots I have had for two years were growing slow but…

  • Composting Tomato Plants with Blight

    My tomatoes had a lot of blight this year; there were good tomatoes growing right beside diseased ones, which I discarded regularly. Can I compost the rest of the tomato plants? They look okay, no rust, etc. on the leaves.…

  • Chinch Bugs

    I own a home in central Toronto. New sod was laid in early September 2016, and we have a sprinkler system in use. We went away on vacation for two weeks recently (early August) and came home to find that…

  • Ajuga Die Back

    Hi, I sent an enquiry in mid June to ask if you could help determine what the problem is with the Ajuga in my garden. All of a sudden the leaves became distorted and curled and shriveled. No other plants…

  • Crabapple Trees

    I have three crabapple trees that bloomed beautifully in the spring but I’ve noticed that they didn’t leaf out nicely. The leaves seem to be really small. The tree looks sparce. They actually look sickly. I’ve noticed that of other…

  • Sick Burning Bush

    Hi master gardener, The last few years my burning bush has had curling leaves at the tips. This year whole branches have crispy brown leaves. These appeared suddenly. Two weeks ago they were green. It’s in a sunny, south facing…