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Channel: Perennials – Toronto Master Gardeners
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Stubborn Mandevilla

I bought a mandevilla last summer, overwintered by pruning back and keeping in a cooler but sunny window, hardened it off before placing it in a morning sun place. Fed it fertilizer and even tried the...

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Name of plant – Brunnera

I found this plant in a garden on a street. Please can I have the name of it? Will it grow in the shade and is it an annual or perennial? Thanks Lorrie

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Plant Identification Please

Good afternoon. I have seen a plant at the Toronto Botanical Gardens that I have been searching for 4 years. I am hoping you can identify it from the pictures attacht. It is a grass with an small...

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Pruning Russian Sage

Please tell me what I should do with/for my Russian sage in the fall. Do I cut it back? Do I leave it alone? Thank you for any information you can give me.

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New flower bed

I live in Brampton and my new flower bed is adjacent to the driveway facing west. It is about 3fx35f. I would like to plant perennials that are short, flowery and colorful. Could you suggest which...

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PHLOX

What mildew resistant phlox would you recommend for part shade ?

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Planting Under Oak Trees

Please tell me what can grow under a big oak tree. The soil is shallow and much limestone in the area… grass doesn’t grow. Is there a tall perennial flower? Or ground cover with flowers?

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Weak flower stems

I’m in Zone 5. Flower garden is in full sun. The soil was brought in in two distinct batches to make the flower bed. It is all quite clayey, one half worse than the other. It’s awful stuff! Tends to...

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Hoya flowering?

  I have had a Hoya plant (see photo, looks healthy / keeps growing) for 6~7 years, started with a stem cut. But it has not had any sign of flowering. I had it indoor until about a month ago, and I...

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Coneflowers Lack Petals

Former southern Ont resident now in zone 3. Have several clumps of Magnus or Ruby Star Echinacea. Last year some clumps (in part sun) have green cones but lack petals.  Happened again this year. Is it...

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Aster Reine Marguerite

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...

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Perennial Aster Disease

Hi I have perennial aster and I think it has a disease. It is covered with a thin layer of white powder. It has this disease last year and I see it again in some of them. I have many of them. Is this...

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Taking pollen from one plant vs taking it from another when crossbreeding?

Good Afternoon, I have a quick question for you regarding cross-breeding pollination with perfect flowers. Specifically, if I use the pollen from one plant to fertilize another, would that provide a...

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phlox subulata

Hi I bought small phlox last November, they were on sale. I planted them in my garden. So you think they will have a chance to survive the winter because I planted them late? Thanks you very much.

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Shade Path

Hi, I have a section of my backyard that I want to do something specific with. In the photo I’m attaching you will see a garage and a garden. Behind the dogwood I want to create a little path that…

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April Showers Invigorate my Green Thumb

It looks like it might be rainy for April, in West End Toronto. What activities, if a gardener doesn’t mind wearing rain gear while outside, can one carry out while it’s raining? I find rain...

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Leaves on Garden in Spring

I listened to a gardening program that suggested leaving leaves on the garden in the fall. I have a layer of oak leaves covering most of the garden, with heavy layers near sensitive plants...

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whitley’s speedwell – Veronica whitleyi

Hi I bought whitley’s speedwell – veronica whitleyi. I wanted veronica liwanensis but what is available now is veronica whitleyi and vernonica waterperry blue. What do you think about veronica whitleyi...

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creeping speedwell – veronica “waterperry blue”

Hi I just bought creeping speedwell – veronica “waterperry blue”. My question, is it the same as veronica liwanensis or different? thank you so much.…

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Tall perennials in planters

The fence around one side of my pool is about 10feet tall and I’d like to find something I could put into a planter that might cover most of that height ( the pool is surrounded by concrete pads.) Any…

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