Like much of Canada, Ontario contains a range of climates and soil conditions. This large area also contains numerous vegetations zones, including the Tundra, Boreal Forest, Great Lakes and Carolinian Forest, according to the Canadian Royal Botanical Gardens. The soils in Ontario range from glacial silt to sand and gravel. Much of the interior section of Ontario includes rich, organic soils with well-drained textures. With a little pampering and proper care, many varieties of plant thrive in Ontario.
Supply your garden vegetables and flowering plants with adequate amounts of topsoil. Some areas of Ontario, especially those in glacial areas, contain minimal amounts of topsoil. Haul in topsoil and incorporate it into the top 8 to 10 inches of soil to provide adequate depth for the majority of your garden plants. Work the soil well to provide a smooth mixture of well-drained soil.
Create a successful garden and landscape by planting varieties that grow naturally in the surrounding countryside. Select ferns and evergreens native to Ontario's forest areas for your yard. Choose ground covers that inhabit gravel soils, such as hens and chicks, to grow in your rocky garden soil. These native plants seldom require supplemental water or fertilizers, making them a good choice for many Ontario gardens.
Much of Ontario experiences freezing temperatures and bitter, winter winds. Some semi-delicate plants, such as certain varieties of roses, die from exposure to these harsh conditions. Protect your plants with a thick covering of clean mulch, such as straw or raked leaves. Keep the wind from blowing away your protective covering by wrapping a piece of chicken wire or landscaping fabric around the outside perimeter of your plants. Stuff this with your mulch to keep your plants warm and cozy during the cold, winter months.
While much of Ontario's soil contains rich, organic ingredients, other areas experience a lack of soil nutrients. Thin soils and rocky soils may require additional amounts of nutrients to produce healthy plants. Signs of nutrient depletion include stunted growth and yellowing leaves. Select fertilizers labeled for use with your type of garden plants. Apply your fertilizer during the active, growing season.