Quantcast
Channel: Perennials – Toronto Master Gardeners
Browsing all 210 articles
Browse latest View live

Hosta Leaves Going Brown

I have 2 hosta that have leaves that have browned and on investigation the whole stem easily pulls away. I wonder with the heat and humidity if its Southern Blight and what fungicide should I use.…

View Article


Powdery Mildew on Bee Balm

My Bee Balm has a white substance on all the leaves. Surprisingly it as started to show a few flowers. What do I do to get rid of the residue. Can it spread to other plants in my garden? I…

View Article


Propagating Oriental Tree Lilies

My Lily Tree was going to die. I took the upper part into the house, put it in a clear vase, left it on the window ledge. It now has fibrous roots as well as what appears to be 2…

View Article

Please help me, I would like to have a nice garden next year.

Hi, this is my first year planting perennials in my garden and I have some questions. I would like to plant some hostas, should I plant them now in the fall or next spring? I have a nice big rose…

View Article

Perennial Hibiscus

Can i make tea from the petals of a Perennial dinner plate Hibiscus.…

View Article


David Austin Roses Not Reblooming / Peonies Not Flowering

Good Day, After pruning my first set of flowers in June/July I found that that new growth became blind shoots. No buds Please help. Also i have had peonies in my garden for the last three years. they...

View Article

What is this plant? – awaiting confirmation

This started growing early summer near my Maple tree in my backyard…

View Article

Sedum ‘Coral Reef’ Brown Colour

Hi there. I planted 10 sedum tetractinum ‘Coral Reef’ along my front walkway last year and they have done very well until recently. Nine of them turned copper-coloured at the end of July, while only...

View Article


Help with something that is eating my perennials

Hello. I have several planting of Jack Frost Brunera and Heuchera (Coral Bells). For the past three or four years, something is eating the leaves. I do not see any signs of aphids on the plants. We...

View Article


Bleeding Heart in Toronto

Hi, When will a bleeding heart usually start to bloom given healthy conditions in Toronto? When should a new bleeding heart plant be planted. I’m thinking around May 1. Is that right?…

View Article

Tree peony pruning

I have a very old, 15 years, white blossom tree peony that has become very leggy. It is now about 4 feet tall. This year it has 5 buds, the most ever. The graft peony at the bottom is very…

View Article

Mildew on my itoh peony

I have powdery mildew all over my itoh peony. After it blooms should I just cut it to the ground? Do I need to spray it once I do this(with what?)? Will cutting it in June effect next years growth?…

View Article

Yellow perennials

I have been searching for a yellow flower perennial that stands at about 24-30 inches tall, preferably a spring or early summer bloomer, to fill a specific spot in our garden. Unfortunately all found...

View Article


Dutchman’s Pipe

Some of the leaves on my large Dutchman’s Pipe have become shriveled up and look like the front end of a conch shell Can you please tell me what causes that and how to remedy it. Thanks…

View Article

Coneflowers wilting and drying up

Hello, why are my coneflowers are wilting and drying up. I’ve attached a photo. It seems to be happening section by section as you can see some stems are still fine. I live in Scarborough. They’re...

View Article


Plants not growing

My small front and sloped garden produces zero growth to plants in general. There is a huge ugly pine tree planted that cannot be removed. None of the plants seem to grow at all and many have died....

View Article

What ferns can grown under trees

Will ferns grow under these conditions? My small front and sloped garden produces zero growth to plants in general. There is a huge ugly pine tree planted that cannot be removed. None of the plants...

View Article


Transplanting a Poppy Plant to Parry Sound

O We would like to transplant a poppy plant from our garden in Markham to a garden south of Parry Sound. We originally got the poppy from my father in laws property in Scarborough. It managed very well...

View Article

Dividing hostas

Hello, I am wondering if it is too late in the season to divide hostas. Would it be better to wait until spring and, if so, how early should I do it. Thanks, Lesley…

View Article

Planting Irises

I have irises in my garden that are overgrown and surrounded with grass. Is it too late now to pull them up and replant them? If so, what is the best way to deal with them? Thank you.…

View Article
Browsing all 210 articles
Browse latest View live