This is an old thread, but I am interested in it since I am in the area where rust is a constant problem. I first noticed rust on some of my plants in 2020. I had never heard of it and was fairly new to daylilies, so I had made my purchases without considering rust resistance. I sprayed the affected plants with fungicide but the rust came back this spring with a vengeance, affecting the same plants and several more in my back yard.
I consulted a friend who is more expert than I am, and she obtained and gave me the directions for the Green Magic treatment, so I purchased a bottle and followed the directions to a T. I cleared away and got rid of all mulch around the plants. I cut down all the affected plants including those nearby. I mixed the solution and sprayed all the plants along with the surrounding ground. I did the same thing for my next-door neighbor's Hyperions and NoIDs. She has about 50 plants, and they were all rusty. I don't know if it started in her yard or mine, probably mine since I had made purchases and brought new plants into the area.
The affected plants all seemed to recover quickly, putting out new growth. However, some of the plants haven't bloomed, or have bloomed much less, than in previous years. I have a feeling the Green Magic may be responsible for that, but I don't know. Some plants that got rusty last season (Frankly Scarlet and Little Business, for example) didn't come back. I still have a few Frankly Scarlets, but they aren't thriving. I may pull them. I wonder if the bed where they are is somehow permanently contaminated.
My neighbor's daylilies, although their bloom was reduced this spring, have not shown a speck of rust since the treatment, I am happy to say. (Crossing fingers)
My Joan Seniors were the most severely affected. I was heartbroken as they had been prolific spreaders and bloomers for me. They have seemed to come back fine after the treatment, but the foliage isn't nearly as gorgeous as it was formerly. I have been so paranoid about rust that I have been maybe a little overzealous about cutting off foliage with any yellowish spots at all (most of which is probably perfectly normal) since the treatment. I must say that unlike some of the other treated plants, the Joan Seniors have bloomed as much as ever this spring. They are still in full bloom right now. I am going to cut them back again in the fall and give them another treatment. I'll decide on their eventual fate next year.
I have ordered some new daylilies recently and intend to soak those in the Green Magic solution before potting and quarantining them.
I wanted to report on my experience with Green Magic.
