How to prune thalictrum delavayi 'hewitt's double'

Cut to ground in late autumn or early spring. Once stems have died back or look untidy, cut the entire plant to within 5–10 cm of the ground. No mid-season deadheading is required as 'Hewitt's Double' does not produce viable seed.

Cut to ground once annually; no deadheading required. Thalictrum 'Hewitt's Double' is a sterile double form that does not set seed, so deadheading is not essential. The airy sprays of pompon flowers can be left to add late-season texture. Cut the whole plant to the ground in late autumn or early spring. Minimal intervention is needed beyond this annual cut.

Once stems have died back or look untidy, cut the entire plant to within 5–10 cm of the ground. No mid-season deadheading is required as 'Hewitt's Double' does not produce viable seed.