planting geraniums

I have just done my Pelargoniums today.
Empty them from there pot, shake of the excess soil, trim the roots if they are really long. Cut the plants back by one third and pot in fresh new multi purpose.

Make sure that when they are in the greenhouse you open the door/windows on nice days to get a bit of air circulation around the plants. Pick off any dead or dying leaves.

Then just keep an eye on them as they are susceptible to grey mould from damp and poor circulation.

Hope this helps.