Oh well, I realise this isn't going to look good, but here goes.....
I bought 3 plugs from Dibleys in the Spring.
Put them each in a 4" flowerpot with peat based multipurpose compost.
Placed them on my kitchen windowsill (North facing) and watered them with Baby Bio (what else?) every day.
They are all coming in to flower now, at about 7-9" height.
I probably wouldn't have done it this way if I thought about it properly......
On occassions when I've been away, or forgotten to water them, they wilt spectacularly; but revive if left in a bucket of water overnight.
I live in an old/cold/damp house and it rarely gets above 15 deg C
Hope this helps.