Plastic bags purchased from IKEA - they're pretty red stripey bags, perlite from Homebase - not so pretty and jolly expensive, and a tray loaded with soaking seeds - 48 hours in the end.
|teeny seeds 'relaxing' in the perlite|
|hydrator bound bags of seeds|
Basically it fools the seed into thinking it's had winter (vernalisation in the fridge time!) and that spring is nice and warm/wet. Then there is a really LOOOOOONG summer (from planting to the end of real summer). Plants can apparently flower in 15-18 months with this method, which is great considering normal process is 2-3 years to flowering!
My hydrator is full of red stripey plastic bags full of vermiculite and tiny pale seeds.