I used to buy it in packages in pet shops. I would like to buy larger amount but don't know where to find it.
Forgot to add I'm in Toronto.
I believe many people buy it at agricultural feed stores. I would assume there aren't too many of them in Toronto proper, but outside the city there should be plenty.
I bought some bags of alfalfa pellet fertilizer at The Real Canadian Superstore/Loblaws last fall...maybe they have it again now that their gardens centres are opening up? Worth a look anyway, cause I know they do make it.
Both Alfalfa pellets and Corn Gluten can be bought at an agricultural feed store as BP states. You'll find them much cheaper than anywhere else there too. Well worth a trip outside the city on a nice Saturday!
One thing to note - Some feed stores only sell by 50 lb lots minimum. In my case, I can purchase the Alfalfa in 10 lb quantities, but the Corn Meal I buy is in the larger 50 pound bags.
Thank you all for writing. Kristiz mentions Loblaws, a friend who works there in the spring says the selection is poor comparing to other years. I was at The Real Canadian Superstore about a week ago and was disappointed. Loblaws has suffered 61% loss and it shows.