• Need a fast growing disease resistance tree in southern Ontario

    At my neighbour's request, the city of Etobicoke/Toronto just cut down a shade tree of towering height and leaving a stump of about 6' across. (My guess, the age of the tree was about 100 years or more.) ...

  • Identifying Monkey Puzzle Tree

    Hello, On a recent visit to Scotland, I saw a couple instances of the tree shown in the attached photo. The individual branches look similar to a long version of a Hens 'n Chick. (I couldn't attach a ...

  • Tree Leaves Yellowing

    I have a two fold question. First, I have no idea what this tree is so have only been able to perform limited searching. Second, it is sick with something, possibly a fungus? For a couple years ...

  • Tree of Heaven

    Hi there: We have this tree in the backyard and we are not sure if we should let it thrive. When it started growing (on its own) we thought it was a sumac and we were fine with that. But ...

  • Pruning Hibiscus Tree

    My hibiscus tree is 15 feet high but this year is the worst for the centre branches dying. I haven't pruned them out yet but I do fertilize, water regularly and it usually has a beautiful showing, although ...

  • Hydrangeas bloom, but stay green

    My hydrangeas (hydrangea arborescen) seem very healthy and always bloom. The blossoms are green at first, sometimes turn white, but then turn back to green and stay that way. They are in two beds at the front of ...

  • Donated plant id

    This plant was donated to our Horticultural Society plant sale with no ID.  I live in the Niagara region of Southern Ontario. The leaves are alternate and toothed.  New stem growth is bright red, with upper leaves having ...

  • Common Hackberry

    I planted this tree about seven years ago and it's done very well. Trunk diameter at the ground is about 5 cm. Height is about five metres. I don't like to have to weed. I've just notice some ...

  • Mugo Pine with Web Spinning Saw Fly?

    Georgetown, Ontario. Climate zone 5b Mugo Pine Location: Sunny conditions 11am to 5pm. Dry, clay soil conditions. Problem Noted: The Mugo Pine is being defoliated on the old branch below the new growth or candle. Evidence: Clusters of pellets. Each pellet measures ...

  • New Spirea

    I purchased a lrg Spirea which had new growth on it. I noticed that these branches were wilted before transplanting it. It wasn't pot bound when it was planted. I tried to water it but it is continuing ...