Posted: 11/07/2015 at 20:55
You can cut pelargoniums hard back to any green shoots with safety. However, I cut back into old wood too and usually its fine.
pelargoniums....all of them, scented included......get leggy esp indoors during summer and I regularly cut them back.
as with most of my long flowering summer plants I cut all the top growth incl flowers off. Outdoor pelargoniums, although stockier, also get this treatment.
Cutting back removes dying and weak foliage and creates an opportunity to clean around the plant.
of course, plenty of cutting material is thus provided