next time remove all potting soil from the "bulb" when you plant the in garden as the potting soil dries out differently than the native soil and can either be too wet or too dry relative to the native soil. best is to plant out in late summer- fall- winter when dormant and no roots. i just put them in an area rich with leafmold. if you walk the woods and see orange spots on the local jacks then rust is present. the local jacks are tolerant of the rust but the exotic jacks are not tolerant of rust and it can wipe out an Arisaema collection. you got rust in > On Mar 24, 2017, at 10:14 AM, Anita Roselle <anitaroselle@gmail.com> wrote: > > I am in the North Carolina mountains, zone 6a - 7b depending what > elevation you are, I am in a cold pocket, about 2 weeks behind other local > gardens. > > I planted the them only with the small amount of potting soil that was in > the 2-3" pot they were in. Have never bare rooted any when I planted them. > Plant that was given to me was dug up where some seed had been planted by a > mouse or ants, so > was in native soil at a friend house that does not have this problem. > > As far as rust they do not look like they have rust but I don't know what > rust looks like on them, I have never seen it on jack's. I am a retired > perennial propagator so have grown a lot of plants in various garden and > have not had this kind of problem. >