'Buttered Popcorn' with a rust resistance rating of 1.3 was one of the first daylilies I ever ordered online. The main reason for ordering it along with the others in that order was rust resistance. So naturally, I have been very disappointed that here in my garden 'Buttered Popcorn' has been one of my most rust prone daylilies for the past two seasons. The rust was so bad that at one point there were no leaves left on the plant. It had just recently seemed to recover and now has decent looking foliage. Because of the rust the plant has naturally suffered, it did bloom, and rebloom but it has been noticeably set back a few times this season. If not for the rust I do feel this plant would have thrived and been much more developed than it currently is. I love the color, and if I can find a viable way of controlling the rust it will stay in my garden, but if not then it will have to go.