Where can I purchase microclover in Canada?
I know you can buy microclover from seed companies, you plant it in the spring and summer so you have time to check out a couple, I am not allowed to endorse a company so I cannot give you a company name, it is easy to find on the web though. You could call your local garden centre and ask them to get seeds in for you in the spring. Here is a link to a site about microclover though I bet because you are already looking for it you know why you want it.
Good luck finding it and thanks for the question, I might give it a try myself.