Hi vosadrian,
It's dormant and as such there's not much you can do. As they say in winter, "Don't Poke the Bear". It should've been fertilised in Autumn with a certain type of fertiliser which at this moment I can't remember its name, but I'll add it tomorrow. This should be done as a shutdown procedure prior to winter break.
all you can now do is wait until late October, depending upon when the season starts and then scalp it again and let the season do it's magic.
Cheers,
BB.
Update..............Fertiliser is Munns Emerald Green