My Campanulas are failing me!
By 1940bomber
United Kingdom 
I have had these Campanulas for years and they have spread wonderfully.
However, the last couple of years they have only produced tiny tight flowers.
Should I dig them out and start again?
9 Apr, 2009
Answers
yes I'd agree they probably need feeding. split them and re plant.
9 Apr, 2009
Campanulas are actually quite greedy plants. They need to be dug up and the soil refreshed with compost/manure/ humic material every few years.
9 Apr, 2009