Hi,
Looks about normal for this time of year, I would not hard prune it as it being such a young plant as hawks head grows into quite a large bush and when more established and has the energy can be hard pruned.

Its classed as a group 6 when it comes to pruning , a light pruning all over just taking the shoots back about a 1 inch/ 2.54 cm , you were lucky we had a mild winter I would suggest next autumn to use a bark mulch around the base of the plant to protect the roots and if the top part gets killed it should regrow from the base.

Hope this helps

Gg

Thanks Gg. I may take this opportunity to find a better position for it as will grow into a large bush-would moving a plant now do it any damage?

best time to move just as its starting into growth so now is ideal, it wont even notice , just give a good watering in to settle the soil around the roots , a feed with tomato food in May June July will help it to flower more as well .

Gg

It can grow to at least five feet high and wide given time so best to move it as you say.

Thanks guys. That will be added to my to do jobs on my garden list!