I dug a mature clump of single FL today for a donation to the local gardening club. It was in that location for 7 years and it is obviously ready to be divided. I have found the clumps reach a peak then just settle down to very slow growth. This one can be divided into at least 4 good divisions and will prosper for another 5 to 6 years. I always dig the FL with a water pressure hose nozzle in order to save most of the roots intact. One can see the feeder roots to judge how effective the method is. Always lift the clump from underneath, never pick it up by the stems. Note there are many eyes connected to the bases of the stems and breaking a stem off will most likely result in a lost eye.
