Posted: 15/05/2012 at 14:14
I wouldn't worry about that, there are few, if any, gardeners who enjoy throwing plants away just because they have too many. More likely is they pass 'extras' on to family and friends or swap plants.
I've dug up two new flower beds which used to be lawn so that I know I have enough space for new plants, I also do my in-laws garden so any that don't fit in here will be making the trip there.
I'm also thinking of digging up another patch for the 36 lavenders on offer next month.