Re: Newer leaves turning lighter
I added pelleted fertilizer, myccorhizal fungi, manure, grass clippings and compost in the hole it was planted with the corm probably even a bit more than 1ft deep so I guess they might be a bit stressed for getting air down that deep. I have also added miracle gro once in a while, but they still seem to be getting lighter.
If I do add calcium sulfate dihydrate, I hope it can make it all the way down to the root zone after a few waterings. I also doubt it is getting lighter new leaves from too much water because it is planted on a hill that drains very well.