• Evergreen damage –

    This evergreen tree sits in partial shade in my backyard in Toronto and seems to have suffered what I think is winter damage (see photos). My questions are: 1) what species is this? 2) what cause the damage? What should…

  • freemani maple – spindle gall and black spot

    – I live in Kitchener (Zone 5) – I have clay soil – I think that the soil is on the alkaline side – house built in the 1960’s -planted a Freemani maple (red X silver) about 3 years ago…

  • Hamamelistes Spinosus

    We have a white chalky substance accruing on our birch tree leaves, causing the leaves to resolve into high ridges. I had been hoping to have a conversation with one of the gardeners but the volunteer failed to show at…

  • Adding Soil Around Large Trees

    I am a volunteer gardener with the St. Mary’s Cathedral in the archdiocese of Kingston.  We have 8 large and very old trees on the site we maintain and have been adding soil around the trees in order to plant…

  • Dwarf Alberta spruce

    Dwarf Alberta spruce. Can these trees be planted in a large, cut-off barrel as I don’t have the room for them to be put in the ground? We live in southeast Saskatchewan. They are about two feet in height now.…

  • are locust seeds viable

    On our street, we have a light green locust tree that turns yellow in the fall. Recently, the ground was blanketed with small flowers. Do all locust have the long curly pods? Were these “flowers” merely flowers or were they…

  • Trimming grass around Trees

    I have hundreds of mature trees in my back yard. Some areas I keep the grass neatly trimmed right up to the trees but some trees are near river so I let the grass grow tall all around them. Which…

  • Neighbour’s Plants

    I would like to know what is the right (lawful) thing to do regarding plants/vines/trees that are planted in a neighbour’s property but that eventually lean over to my side of the fence. Do I have the right to prune…

  • Japanese Maple leaves are pale yellow

    This tree is located in the full sun for most the day. It is located in the North Toronto neighbourhood. The leaves were green last year but now those at the top of the tree and end of the branches…

  • Sparse growth on maple tree

    Attached are photos that further depict the problems I have with my maple tree that you addressed in a previous email. Small leaves with brown edges, small seed pods with brown, dead ends of twigs (no growth) and my tree…