Experimenting with the Chelsea Chop
If you watch much British gardening shows (well, that is bascially all we have, right?), you probably are familiar with the "Chelsea Chop". This is the practice of cutting back tall, late-blooming perennials to reduce size and prolong bloom. I've never tried this and tend to let plants do what they do. Until now that is.
The Joe Pye weed has to be the largest perennial I've ever grown. And it just keeps getting taller. Here it is last year -
I am guessing that it is 7 - 8 ft. tall. Most of the plants behind it are large shrubs and trees but Joe Pye is so tall that I didn't think we would ever enjoy the blooms of the newly planted elderberry. This year, Joe is quickly approaching the 6 ft. mark.
That is, until a few days ago when the Chelsea Chop was employed. This can be done by a third or by half. We cut it back by half. Now it looks like this -
Comments
You must submit another photo of this eager shrub, once it starts blooming.
I've been doing something similar this year with some of my perennials -- none that get that tall -- including some goldenrod and Coreopsis pubescens. The Coreopsis is just starting to bloom now so I'm looking forward to seeing whether I like the effect.
(I think cutting in layers or doing the Chelsea Chop can also increase the number of flowers, since often the cut stem will branch. I've done that quite successfully in the past with the 'standing cypress' wildflower, for instance.)