hey volker, yeah they are 3 weeks old today from the day they germinated which was 18 dec. The biggest plant is on its 7th set today, smallest plant has 5 sets but its lost its first leaves in its first few days so i put it down to that. I've attached a pic anyways so you can have a mooch. she 9hopefully is about 4 inches high, lots of side shoots so bushy more than leggy.