No idea, but if you're lucky it will seed itself around, and you could always split the one you have??

I think splitting your plant is the best way too,Taz..

thanks everyone, I will try splitting the plant, as I know rozanne one geranium that does not set seed

Oh - well mine has produced a 'baby' about 3 feet away from the main plant, so I thought it must have been from seed!

sorry sheilabub for taking so long to reply, but I've been up in my fav place, for a week, (Scotland). you may have been lucky with your plant ,but it is supposed to be sterile. my plant looks like its going to seed but then the seeds do not develop,

No apology necessary, Taz: I'm sure you're right!