It's definite that Clivia miniata hybrids need chilling for 4 weeks or so at or below 50 F to trigger flowering. The Belgian hybrids seem to be less dependent on temperature than other strains of C. miniata. Other species of Clivia may not be so directly dependent on temperature. I agree that Nerine bowdenii might need the same thing as C. miniata. My bowdenii spend the summer outdoors in the lath house. Before frost, they are moved into a greenhouse where the temperatures get down to 55 F in cold weather. They bloom in Sept-November, but not all of them bloom in any given year. They loose their leaves and don't start growing new ones until just about now. Nerine initiate new blooms more than a year before the bud actually starts to grow. Your Nerine bowdenii will need good conditions for at least two consecutive seasons before you can expect to see many blooms. Broad-leaf nerines like bowdenii and sarniensis also need very careful feeding. Use low Nitrogen (N), high Potassium (K) fertilizers during the growing season. I use a custom formulated fertilizer with N-P-K of about 0-15-35 on my Nerine bowdenii and sarniensis. My conditions are not perfect. Indiana's climate and my greenhouse settings (not optimized for Nerine) may contribute to the problem. Still, I do get some blooms every year. Jim Shields At 01:11 PM 3/24/2013 -0400, you wrote: >Overwintering nerine. >It could be temperature related. I have a few pots of seeds grown clivias. >They bloomed very sparsely when wintered at room temperature, but since I >started wintering them in a cool greenhouse (+4 C minimum) they set buds and >bloom profusely without fail every year. Now I have a couple of pots of seed >grown nerine. They are not big enough to bloom, but it gives me some ideas. > >Bea Spencer zone 5 Ontario ************************************************* Jim Shields USDA Zone 5 P.O. Box 92 WWW: http://www.shieldsgardens.com/ Westfield, Indiana 46074, USA Lat. 40° 02.8' N, Long. 086° 06.6' W