Should I Prune Hypericum?
Since the Hypericum Only Flowers at the End of Newly Grown Stems the Pruning Should Encourage New Growth. Cut the Shrub Back to Within a Few Inches of Soil...
Since the hypericum only flowers at the end of newly grown stems the pruning should encourage new growth. Cut the shrub back to within a few inches of soil level. The shrub will survive what might seem a savage attack and recover in time to produce a great display of flowers on the wealth of new shoots.
When should I cut back my Hypericum?
It can be trimmed into an attractive, low hedge that flowers from July to October, even in areas of deep shade. Hypericum x hidcoteense is a shrub that can be reduced in size by cutting back in the spring. Remove any weak or thin growth and then trim back the rest to a strong shoot.
Can you hard prune Hypericum?
All shrubby hypericums flower on this year's growth, produced late in the season, much like buddleia. If a plant is overwhelming its space, give it a hard spring cut. ... Prune quite hard, cutting the plant to a foot off the ground if necessary, and it will still respond happily by late summer.