By Pdb
Lancashire,
United Kingdom 
My new border is 2 years old. It has grown a lot since last year but when I cut back lupins, delpiniums and Aconitum I am left with bare patches. What does everyone do to fill in.
10 Aug, 2010
I just cut flowering stems down, but leave the foliage in place, as long as it hasn't died right back.
10 Aug, 2010