Top heavy hedges draw the eye in late winter
They cry for a chance to start over
This happens because the plants are continually sheared, and
nothing else. No thinning cuts to let light into the center. Never
a rejuvenating cut to cultivate some new canes.
All the plant's leaf surface concentrated there, on thin twigs,
shading itself out, that's not a healthy thing, and not nearly as
pretty as a full-to-the floor hedge can be.
If the hedge were ours to maintain we'd start with a later
winter/early spring cut (before budbreak) to 1/2 or 1/3 their
present height, with a few canes on each plant cut further down.
New growth would come from the base on up and by July we'd be
nipping it to level it out and make it branch a bit.
Like so, one long cut and then some thinning of the main