Tritonias are well suited to mediterranean climates, as many (not all) of these southern Africa plants come from winter rainfall areas, with dry summers. The easiest to find from bulb suppliers are the bright orange T. crocata and deep pink or purplish T. squalida. A mystery plant I was given by Brian Mathew as "Tritonia sp. (pink)" has bulked up well for me under glass here in the UK, and I have now planted a lot of them in the un-irrigated part of our hot Greek garden, where they flower well in March. The pink fades almost to white in full sun, but is a clearer creamy pink in part shade, as shown in this photo.
Do you think this may be a hybrid?