Pop-up garden centres in Toronto

I know it's early. So most of them won't be open yet. But I do a lot of my plant-shopping at a few pop-up garden centres around the city. My old favourite is probably permanently gone - on Keele St. just north of Steeles - I drove past today and it was completely derelict, possibly slated for some development or other. My other fave is at the corner of the Dufferin Mall parking lot. Both of these have unusual - Italian, Asian, weird European - varieties of vegetable plants and great flats of mixed baby lettuces. There's another one on Keele, north of Wilson, that sets up in front of a barber shop on the west side of the street, run by a very quirky old Italian guy. Anyway, since I don't live in the city, I'd love to hear when the Dufferin one (especially) opens this season. Or if you know of another good place to pick up odd plants, I'm open to exploration. So please post when you see something good.

(Mods: I'd put this one the gardening forum but it's so specific to Toronto that it wouldn't make sense.)