I keep looking for rust resistant plants for my garden, and I did a search of
rust resistant plants for 2015. I pulled up 39...all Gossard plants. Yes, the one I really wanted 'Stop The Car' is $150.00, so I won't be getting it for about ten more years.
Anyhow my question is where did the rust resistant rating come from?
Is the simple rating of "rust resistant" left up to the hybridizer to fill in when registering the plant, and the more precise numerical rust rating of 1-5 or such, assigned by University studies?
I thought it odd that all of a sudden for 2015 39 entries from one breeder were listed as rust resistant, what has changed?
