I'm new to this forum, but I'm already facing a moral issue.

I plan to devote my back yard to Crocosmia, but that means I need to get rid of some Daylilies and Iris plants. Here's the problem: The Daylilies have suffered from rust and one of my Irises had root rot.

I don't intend to trade these plants... I'm more than willing to give them away. Should I do that or should these plants be destroyed? I'd appreciate any input.