The typical italian bellflower
will usually grow up to 1 m and reach an ultimate spread of 1 m. They are perennial, which means that they will bloom once a year. Because of this, they do not necessarily need pruning, unless you are trying to maintain a certain shape. The italian bellflower
can take up to 5 years to reach its ultimate height, which is another reason why you may not need to prune your plant
for quite a few years.
If you choose to prune for shape and to encourage growth, you should do this at the end of spring, and definitely before the beginning of fall. While pruning, remove any shoots that appear weak or are growing in the wrong direction. This will encourage the plant
's energy to be diverted towards the other shoots instead. During the flowering season, some choose to remove wilted flowers, as this can prolong the flowering phase. This can be done by 'plucking' off the dead flowers. Deadheading flowers will also prevent this plant