Ina and all, The "thread-leaf" nerines include masoniorum, filamentosa, filifolia, angustifolia/appendiculata/angulata, platypetala, and rehmannii (off the top of my head). These all have leaves less than 4 mm wide. I give these regular commercial fertilizer with nitrogen (i.e., 20-10-20 or the like). I'm afraid that platypetala and rehmannii are just barely still in my collection; one neglected little bulb of each remains. So the "broadleaf" nerines have leaves wider than 5 mm, and that list includes bowdenii, krigei, laticoma, huttoniae, sarniensis, and undulata. These all get the nitrogen-free food. I actually formulate my own stuff in this case, and its N-P-K is roughly 0-15-35. Bulbs just don't need huge amounts of phosphate (P), but they do need plenty of potassium (K). There are a few others that I'm not sure about, and I strongly suspect that N. krigei is genetically one of the narrow-leaf bunch. Nitrogen does not seem to bother it, and it hybridizes with filifolia easily. The only white nerines I've heard of are in bowdenii, laticoma, sarniensis, and undulata. Send me a picture when your N. masoniorum alba leafs out, please, and again when it is in bloom. I'm interested! Jim Shields in mild, sunny and very dry Westfield, Indiana, at about 40°N, 86°W USA ************************************************* 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