Robin, Thanks for the advice! I was beginning to worry as I didn't hear back from anyone~! I had been following the advice of John Lonsdale, as he has similar conditions as I do, since he is in eastern PA and I am in Massachusetts. However, he uses a mixture of Biocomp ( composted peanut hulls and potting mix) along with perlite), but I find that this drys out too quickly, even in the winter. I am planning to repot this weekend using the Cyclamen society's advice to use 50% composted bark mulch ( which I have a lot of) and then adding 25% perlite and 25% promix. Adjusting the recipe with composted, shredded pine needles for the C. graecum, and perhaps sand for some other species. I really respect your advice, Robin, as you have about as much experience and anyone I know with the genus. I grow my cyclamen in a raised sand bed in a glass greenhouse, which is covered with shade cloth in the summer. I do keep the sand slightly damp for the C. graecum, as the roots do extend down into the sand, but I must admit that I am not a Cyclamen geek, so I do get lazy and sometimes forget to water, fertilize, or even groom. Matt Mattus Zone 6 Worcester, MA On 7/25/13 5:16 PM, "robin@hansennursery.com" <robin@hansennursery.com> wrote: > > > Matt, > > For years I've used a Eugene company's "potting mix" which consists of > compost, fine bark, sand and pumice with the merest touch of starter > fertilizer. The last two years or so I have added additional pumice, so that > the pumice makes up 1/4 to 1/3 of the mix, then add a tablespoon of bonemeal, > stirred in. I also make sure I don't use any larger pot size than absolutely > n