Graham, the seed pods at maturity are about 1cm across. They don't seem to "ripen" fully, not browning or drying but I have removed them when they soften somewhat. The very small black seeds are in a sort of jelly-like substance and are the very devil to clean and dry. The pods before collection are darkish green, striated with black and on very stiff, coiled stems. Not coiled like a cyclamen but just a single coil. When you feel or see this stem you know you have a good pod.