All the summer-rainfall ones I've grown (from your list, dalenii, ecklonis, oppositiflorus and saundersii) were straghtforward warm generators, no chilling or other treatment required. Ellen On Fri, May 3, 2013 at 2:43 PM, Dave Poole <daverpoole@hotmail.com> wrote: > I've recently become more and more fascinated by the South African species > and having found a reliable seed source in South Africa, have ordered about > 10 sp. for starters. Looking back through the PBS archives, I note that > there is mention by Diane Whitehead of the seed needing to be alternately > chilled and brought back to normal temperature for about 1 week in order to > 'kick start' the seed into growth. There appears to be no subsequent > comment about this so I'm not certain as to how important this chilling > really is. Can anyone enlighten me? The sp. I will be growing are: G. > aquamontanus, cardinalis, cunonius, dalenii, ecklonis, oppositiflorus, > priorii, pulcherrimus, saundersii & vinosomaculatus. > > > -- > Ellen Hornig > 212 Grafton St Shrewsbury MA 01545 508-925-5147