Other time variants for cutting boxwood and hedges
For cutting boxwood trees or hedges, timewise there are two different variants :
Variant 1:
Cut back at the end of May, beginning of June. This way you can use the second growth phase which usually occurs around end of June for a more dense growth of the hedge or boxwood tree. You may then cut back again till mid or end of July.
Variant 2:
Cut back at mid or end of July. This way you only need to cut back your hedge or boxwood plants once a year. However, if you want to encourage your boxwood or hedges to grow more dense, you should cut back twice a year using cutting variant 1.