I got my little seedlings growing on a window sill inside, that I sowed last year about October, they take a while to get to any size mine are about an inch and a half not all the seeds grew though can take up to 4 years to flower I read somewhere. Will try the method you posted sotongeoff, looks similar to what I am trying out I will try and sow more now as well, I have white Agapanthus seeds too. I did try some before but left outside and weather got too cold for them.