They will need a bit of looking after, however: regular watering, longterm fertiliser and repotting annually with fresh compost.
Times, Sunday Times (2007)
Wash the bulbs after dividing them before repotting into fresh compost.
The Sun (2016)
The best way to remove them is with a hand fork, and then top-dress the containers with fresh compost.
Times, Sunday Times (2006)
You will only be giving them food from the fresh compost.
Times, Sunday Times (2013)