thinking of growing one of these up the front of my house/porch as it's a bit bland... I have a stone edged border about 18 inches wide and wondered if this was enough room and if it would damage the footings if it was planted right up against my house? Also I know i'm late in the year for this but work got the better of me and I have a week free coming up and wanted to put it in whilst I have time, is it a no goer or is it ok to plant one now?