Aeonium Zwartkop - getting bigger

I have a beautiful Aeonium Zwartkop,  I bought him from St Davids nurseries in Pembrokeshire last spring,  and named him Zebedee!  Love this little plant who lives in a medium pot by my front door.  He came in for winter, just in case,  and is now outside and a great colour of deep red/purple/black.  My question is,  hes now producing more flowers  and I dont know what care is best.  He seems happy and is facing south in a sheltered spot.  

Can he be propagated?   He is one long stem with rosettes of flowers/leaves  at the top.