Trailing Geraniums - help please

I overwintered a load in the greenhouse and they were okay until just recently. They are putting out loads of flower stems, but the leaves are turning red and the plants are getting lanky.

I have taken all the flowering stems off and put the plants in a cooler environment (the shed). Should I feed them with something?

 

Hi Tia. Maybe you could just plant them out. We both live on the south coast and I had mine out last week. They seem quite happy

 

I dont think they will be happy in the shed, especially with the weather we are now having.
As cajary says, I think I would have them outside by now.

 

Okay, they are outside now and seem to be recovering. Thanks guys.