Ask Lemmygrad

To start something like this:

Do you have the knowledge/skills to operate it yourself? Or maybe a supporter(s) that does?

When you can answer yes, and show that it works, you can start looking for others in the community to join in, with the specific goal of starting a co-op.

It is likely easier to get money as a sole proprietor first, and then once everything else is sorted (by laws for example) and you have been operating successfully, you can convert to a co-op.

You could contact any co-operative in canada for help, or search "start a co-op canada" and likely find good information.

Which part of Canada?

I would investigate government grants that target creating municipal assets. Then form whatever sort of "gardening association" is able to apply.

I.e. do whatever that Valemount Learning Society did in your link.

I'm totally inexperienced when it comes to organizing so take this with a grain of salt, but you might want to just focus on solving the issue at hand before making some rule for communist purity. That way you can be more far reaching in gathering a community around it.

If you are personally a communist and you set a good example in your community then naturally people may follow. But starting from the top down with communism is probably not going to help and might put your project dead on arrival.