July 23rd, 2014
Have you heard of the ‘Chelsea chop’? If not, it’s nothing to do with what you may be having for dinner. It refers to the practice of cutting back your perennials early this month (or bit earlier, hence the nod to Chelsea flower Show at the end of May) to make them shorter so less likely to flop and flower a little later. It works well with plants such as the bigger sedums, phlox and helenium.
It does look a bit drastic, so what I do is cut some back and leave the rest. That way you get a longer flowering season. Of course if you have wonderfull y staked, sturdy plants there is no need.