We went there Monday evening and found 2 caterpillars and half dozen eggs -- on the ugly common milkweeds. They are in the terrarium now.
Tuesday I drove past the field and it had been mowed. :-(
I have read that A. tuberosa is hard to transplant; I'm wondering if that might just be the seedlings. Went to wildflowers.org and it says they are best propagated by root cuttings. They take several years to bloom from seed, so I know these plants have been there for a while and one or two mowings won't kill them. Just wonder if anyone has tried transplanting them from the wild, or sliced one up into root cuttings?