I have never heard of that one Polly, Do you have picture? sounds like you got a good collection!
We will define a collection as more than one plant of a kind. If you have three plants and they are all different kinds you could still add them by calling them a Flower Collection, or Butterfly Garden collection, or Shade Garden, etc.
Or just something you are looking to collect,
If you got one Hosta, then you might be starting a collection, and if you have two hosta's you already have a collection.
How's that?
