Eucalyptus bush

I have a eucalyptus bush which is just over a year old but has grown to about six feet but almost on one long stem.  I really want it to be more bushy.  Should I cut it back now?  

Hi sunshine in the garden - just came across your query and as I have eucalyptus bush which I prune each year thought you would be interested in this link which explains what to do and when to do it depending on the look you want.

http://apps.rhs.org.uk/advicesearch/Profile.aspx?pid=136#section4

I have not contributed to the forum previously so hope that the link works !!