• After the Flood … How to Deal with the Impact of Excess Water in the Landscape

    While many landscape plants will survive short periods of flooding, extended periods of standing water are often detrimental because of declining levels of oxygen in the soil. As soon as possible, remove flood debris from the landscape. If additional soil or sediment has been deposited on lawns or over tree root systems, you may need to remove it. One inch of silt or soil is sufficient to kill a lawn. Silt deposits of 3 inches or ...

  • Free Gardening Advice at the CNE

    Got a gardening question? Going to the Ex? Master Gardeners will host an Advice Clinic at the CNE daily, from opening day Friday August 17th to CNE close on Monday September 4th. Trained Master Gardeners will be available to answer your gardening questions, free of charge. Be sure to look for us in the Enercare Centre  near the flower and plant competitions.

  • Black Edges on Young Pear Leaves No Cause for Alarm

    OMAFRA (Ontario Ministry of Agriculture, Food and Rural Affairs) has just released an advisory on this subject. They report  that this year, as in 2016, black marginal necrosis  is appearing on the newest growth of pear (Pyrus) trees.  In 2016, after several attempts at culturing pathogens failed, they determined that the necrosis was the result of extreme weather. Southern Ontario has experienced sweltering heat and humidity again this ...

  • Shear Boxwoods and Eastern White Cedars to Control Miners

    OMAFRA has issued a reminder that now is the time to give both these woody plants a light shearing to reduce populations of leafminers currently in the larval stage in which they feed on the inside of leaves and scales. You may have noticed the damage they cause -- yellow spots on boxwood foliage and dead brown scales on cedars. Annual summer sheering of these evergreen hosts can, over time, reduce infestations of leafmining pests, and also ...

  • Carry a Bucket; Save a Tree

    The past few weeks of extreme heat coupled with lack of rain is putting urban trees at risk. Do help the trees along streets, in parks and in your own yard by giving them a much needed drink of water. Sugar maples, birch and beech are trees with relatively shallow roots systems and will be among the first to indicate stress from high temperatures and low moisture levels. Newly planted or young trees need as much as 3-4 buckets of water ...

  • Garden Alert: Harmful Beetles Active

    Japanese Beetle adults are starting to emerge now, soon to be followed by European Chafer beetles.  Look for these shiny green and copper beetles feeding on grapes, roses and other flowers. Where possible, knock adult beetles into a bucket of soapy water to drown them. The adults will mate and lay eggs that hatch into white, C-shaped, soft-bodied larvae with legs near the head, which feed on grass roots, causing sections of the lawn to die. Skunks ...

  • Time to Deal with Boxwood Leaf Miners

    The Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA) has posted a notice reminding gardeners that those yellow / orange spots on boxwood leaves are the result of boxwood leaf miner pupating inside them. Since adult miners (midges) are emerging now, it's time to get this pest under control. Look closely to find empty pupal cases sticking out through tiny holes in the undersides of leaves. Adult midges lay their eggs on newly emerged leaves ...

  • June 3rd Hidden Gardens & Private Spaces Tour Features On-Site Master Gardeners

    Come enjoy the unique and charming gardens of Cabbagetown as well as the historic streets, alluring laneways, and Victorian architecture, from modest to grand. This annual self-guided tour is presented by the Cabbagetown Preservation Association On Sunday June 3, from 10am to 3pm, Toronto Master Gardeners will be on site to answer questions and give advice about gardens often in small spaces, with towering shade trees and frequent visits from urban wildlife. For more information, including how to buy tickets, click

  • Toronto Master Gardeners at Spectacular Private Garden Tour, June 9-10

    Toronto Master Gardeners will be stationed in each garden to help identify unusual plants and points of interest during the Toronto Botanical Garden’s tour of private gardens in The Windfields Estate neighbourhood, Saturday, June 9 and Sunday, June 10, 2018,  11 a.m. to 4 p.m. Enjoy this self-guided tour at your own pace. Complimentary shuttle buses will allow you to hop on and off as you make your way around the garden route. A printed guide and map ...

  • Master Gardeners Join National Garden Days Network of Champions

    Master Gardeners of Ontario is now an official partner of Garden Days -Les Journées du Jardin and part of the 'Network of Champions". Garden Days, a program of the Canadian Garden Council, is Canada’s country-wide celebration of the vital role of gardens and gardening in our communities and in our lives. This 9-day program of activities and events is for gardening enthusiasts, families, schools and tourists alike. Garden Days is an opportunity for Canadians to enjoy ...