I don't have anything to really weigh in on the matter or xenox or other dark sedums... I only have autumn joy and matrona. But I had no idea what I had was matrona lol. I received two cuttings from a former co-worker last June, I believe. I stuck them in the ground but haven't really seen them in full fall flower (they had small buds on them when I got the cuttings but they never bloomed). So at any rate, I just wanted to say thanks for naming my sedum :) But, i do love Lynda Windsor... saw it on Blue Stone and I'd love to get a few of those

Offer is now withdrawn. Thanks you to those that traded.

Striped Sedum 'Mediovariegatum' (Sedum erythrostictum), maybe. Not a native, incidentally, since you posted on the Native forum.

Ken may have something there :-)) Winter cold is seldom an issue here although excessive winter moisture often is. As long as that location drains well, I would expect these plants to perk up with warmer temps and the start of the growing season. Both are tough enough plants that small bits broken off at virtually any time of year will root all on their own, soil or not! We often have 'crops' of these growing in more than 4" of coarse gravel under the nursery tables with no direct sunlight. Hugely hardy and adaptable plants!