Hi all, Alberto is quite correct -- floatation does not work for all papery seeds. Besides the cyrtanthi, floatation does not work for seeds of Hippeastrum psittacinum. I don't think it works for Worsleya seeds either, but haven't tried it there. Indeed I do use floatation only for small lots of a few species. We don't grow Hippeastrum commercially, just for fun. However, I am forced to say that IMHO any lack of success with planting floated seedlings is likely due to poor technique. It truly does work when done with a modicum of skill. Controlling the moisture and humidity around the newly planted seedlings is critical. Sticking a floatation seedling into potting mix takes about as much effort as sticking a seed into mix on edge. You do it the same way: make a hole or slit in the firmed mix, and insert seed or seedling. Firm up the mix again around the planted seed/seedling. It boils down, as so much in gardening and horticulture does, to what works for you. We do not have a source of coir here. We cannot get pumice here. We do use a lot of granite chicken grit in our potting mixes, but most people cannot get granite grit. If what you are doing works, don't change just because someone else gets some other method to work -- unless you like to experiment. Good luck with your Hippeastrum seeds! Jim Shields ************************************************* Jim Shields USDA Zone 5 Shields Gardens, Ltd. P.O. Box 92 WWW: http://www.shieldsgardens.com/ Westfield, Indiana 46074, USA Tel. ++1-317-867-3344 or toll-free 1-866-449-3344 in USA