For me self sowing happens when I don't remove the seeds. Someone said that ants disperse the seeds. In my Northern California garden Cyclamen are popping up in places near and far to where original plants occur. I have lot of different species appearing. Cyclamen repandum is especially happy and can flower quickly from tiny tubers. I removed a tiny one starting to flower in a Zantedeschia pot I had moved under cover for the winter. I'm not sure how it got there. We have moderate summer temperatures winter and summer, but not plenty of moisture during the summer. It's very dry here usually starting some time in May until October and usually no rain at all in July and August. The last couple of years we could only water 10 minutes twice a week evening or early morning during the summer and since we have a lot of trees with roots that go after the water, that amount of water doesn't get the soil wet. Cyclamen leaves are appearing in places that didn't get any water (pathways.) So at least here plenty of moisture is not a requirement. Mary Sue On 3/20/2017 5:16 PM, Ellen Hornig wrote: > Since they germinate best when fresh, and they ripen in early July or > thereabouts, I'm thinking they self-sow best in places with moderate > summer-to-fall temps (not baking hot), plenty of moisture during that > period, and either fairly mild winters (PNW) or plenty of snow cover > (upstate NY).