FREE online courses on Vegetable Gardening - Pruning - Pruning Formal Hedges
To turn a row of unruly shrubs into a formal hedge will
probably require a couple seasons and several sessions of pruning, but here are
the general steps:
- Thin out
the dead, crossed and unsuitable branches, cutting them right to the ground.
- Use
long-bladed shears to cut about 6 inches off the tops of the shrubs, leaving a
flat surface.
- Trim the
sides back to create a flat plane, but flare out slightly away from the plant
as you go down so it's wider at the bottom than the top. That will expose the
bottom to more sun and encourage leaf production top to bottom.
- Once it's
close to what you want, quit and let it grow for a month or two. Don't overdo
the first cut.
- When you
come back for the second cut, trim the top and the sides back again with the
long-bladed shears to remove the wild ends but leave as much of the new growth
as you can.
At some point, you can determine the final size and shape of
the hedge and then focus your pruning on keeping it that way.