Hebes are far more likely to suffer in our heavy clay soils, especially in waterlogged winters. Pruning: Prune after bloom by cutting back branches that bloomed by half to maintain compact form, as they bloom on new growth. Also a good thinning every couple years keeps Hebe in good shape.
How do you prune a Hebe Bush?
Immediately after they have finished flowering simply cut out the dead flowers. After a harsh winter some stems may have been burnt by frost. Inspect your hebes at the end of March and prune away any damaged stems, cutting back to a live bud.
Where do you prune hebes?
Hebes require very little care. Avoid feeding them as this can make them grow too quickly and develop floppy leaves. Cut back back dead flowers and up to a third of foliage in late summer, after flowering, to encourage strong new growth and a good bushy shape.