I have modified some of the cultural advice posted yesterday and added some tips on specific species. I will add to this in the future. I have had people ask me how I keep my Hippeastrums so healthy. I must emphasize the yearly repotting and cleaning. We repot all the bulbs in winter, clean the bulbs, removing any dead tissue, dead roots, and all the outer dry tunics, scraping off dead material from the basal place. Sometimes I dust with sulfur when I do this, otherwise not. The pots are washed, and the benches washed also, and the bulbs repotted in fresh material with the old potting mix discarded. I used to use fungicides, but have not had to for the past two years. I keep my bulbs much drier than most bulbs. The only problem I have had with rots is when the medium is too moist. There are some species that like moisture (H. blumenavium, but maybe it's not a Hippeastrum after all!). Old potting mix gets compacted, fungal disease can build up, so the repotting is very important. It is a very big job, and my helpers and I do it in the winter, but my collection is very valuable to me. blog: http://www.thebulbmaven.typepad.com/ Diana http://www.telosrarebulbs.com/