Ask Categories: Herbaceous Perennials; Cultivar/Species

Overwintering geraniums

Geraniums I hope you are having a happy holiday season! I have kept putting off this question to you. I live in a condo. I have a small patio and I face north. I had geraniums on my patio this…

Hellebore blooming in November

A Hellebore in my garden (“Snowbells”) has started blooming in late November, and I am worried about what will happen when it gets colder and it snows (again). I planted the Hellebore in July. It is in a small, backyard…

Plant ID – Salvia, Bidens

Hello Master Gardener! This orange flower and the purple flower are in planters. I brought the planters inside (I kept the same soil), to protect from them from frost. I am watering the flowers as before when they were outside,…

Adam’s Needle Not Flowering

Hi, I moved into a new house and there is an Adam’s Needle (I think) that bloomed last summer. This year it did not bloom at all but did grow a shoot. How should I take care of it over…

Proper Mulch for Black Mondo Grass

I plan to mulch a patch of black mondo grass (Ophiogogon planiscapus ‘Nigrescens’) to protect it from winter burn this winter. I was planning to make a small ‘wall’ with low stakes with burlap attached all around to surround the…

Tree peony

Hi, Where can I find Joanna Gilbert tree peony in Toronto? And is it too late to plant tree peony in mid November? Many thanks!…

Winter Protection for Black Mondo Grass

Hi. I’m in Zone 5 to 6, close to Lake Ontario, so always a little warmer in the winter. I have a nice patch of black mondo grass. Some years it winters really well and some years not so much.…

Perennial Hibiscus

Planted 6 different perennial hibiscus in my north facing front garden this year. We live in Guelph, Ontario and they are all still blooming today (October 10). We haven’t watered them in months and the drought and cold temps this…