Begonia maculata or polka dot begonia

Hello I am trying to locate a specific type of begonia and wonder if you can tell me where I may find one or a cutting. It’s a maculata or polka dot cane begonia  …

Sunflowers Allelopathy and Vegetables

I read with interest your reply to a previous question here: http://www.torontomastergardeners.ca/askagardener/plants-that-will-survive-sunflower-seed-hulls-toxicity/. I planted sunflowers in a part of my vegetable garden and was not able to use it this year. Are there any vegetables that will grow after a…

Overwintering Ruellia brittoniana

Hi. I have grown a ruellia brittoniana/simplex plant in a large pot with ordinary potting soil for two years. In the summer it goes outside in the sun and in the winter I have put it in a bright spot…

Overwintering plants

Hi, I would like to know what to do about these plants over winter. Blackberry – just planted it this summer, will it survive winter? or do I need to dig it out? Lavender – understand that it can survive…

China aster

Hi I just bought 3 pots of aster reine marguerite (white,pink and purple) from Home Depot (they still have them). I thought they are perennials because 5 years ago I bought Aster (dark purple) and it has been coming every…

Morning Glories not Blooming

I grew my morning glories from seed and the vines are lovely and vigorous but there is NO sign of a flower. Is it possible that they will still come? I see other people’s flowering already in my Toronto neighbourhood.…

Dying Strawflowers

The leaves on my strawflowers are all turning brown and when i cut the plant in half I discovered the stem is hollow and woody. The plants only had 1 or 2 strawflowers each and now, mid-summer, are all dying.…

Zinnias and Powdery Mildew

The zinnias I planted were doing very well but have developed some white dusty leaves and aren’t looking as healthy. What am I doing wrong? Over-watering? Is this mould?…