An heirloom section, non GMO section, perhaps an exotic section would be cool. Instructions on depth of planting, spacing, amount of sun, best one all that stuff would be helpful. It is a great idea. Might also some ideas on how to best preserve seeds-usually freezer

The only heirloom seeds I have are from an orange butterfly plant that I took from the wild about twenty years ago.

I don't see the need for the arrangement. Months ago I posted that I have heirloom black tomato seeds to share. Several members said they would like them and sent me their addresses as a private message, and I sent them the seed.

You would need the zones areas because not everyone's seeds are going to grow in that region. I am in zone 8 so that limits me to a lot of seeds from the southern areas.

With regard to some plants, indigenous region is very important. For example there are 100s of varieties of milkweed, one of the most beautiful being a tropical that in N.A. is implicated in the transmission of a deadly parasite for monarchs.
It's fine for the lower areas where it occurs naturally, but not up here.
Another example, I've got giant ironweed I'm currently fielding "rehoming" for on another forum. While it's a fantastic nectar plant should be kept in the locals where it occurs, because it's very "monstery".
Just thinking outloud before the coffee sets in.

Excellent!;I am in Southwest Florida and have tons of seeds from our native plants

I save my seeds too but only non-GMO heirloom seeds. I'm not sure how it would work if I had to send seeds by mail across the border to places outside of Canada.