Nemesia cheiranthus or any of its cultivars?
Most other species of Nemesia don't do well in our summer heat around here, and are grown as cool-season annuals. They are native to Namaqualand in S Africa, which is pretty hot & dry, so it makes me wonder if they might do well for me.
Supposedly they are somewhat coconut-scented......and such bizarre flowers....let me see if I can pull a pic in from the database