can you compost hedge trimmings?
Yes — soft green shearings compost fast, while the pencil-thick woody bits ride along and finish about a year later.
breaks down in 3–12 months; woody stems outlast the leaves
C:N ≈ 25:1
which bins can take it?
- hot pile yes
- cold pile yes
- worm bin no
- bokashi no
- tumbler caution
- curbside yes
- tumbler: Whippy shoots wrap the mixing bar and stall the drum — shorten them to a foot, or run a mower over the heap first.
why?
Shearing a hedge produces two materials at once. Leaf and new growth are nitrogen-bearing tissue that breaks down in weeks, but the lignified stems behind them need a year or more, which is why a heap of trimmings finishes unevenly and wants screening. A handful of hedge species also bring real toxicity along with the clippings.
how to prep it
- Run a mower over the pile of trimmings to chop it
- Mix with dry leaves or shredded paper — fresh shearings are wet
- Screen woody stems out of the finished batch
watch out for
- Yew (Taxus) clippings stay lethally toxic to horses and cattle even after drying — never compost them where the finished material could reach a pasture or paddock.
- Boxwood blight spores persist on fallen leaf debris for years, so bag blighted clippings rather than composting them.
- Cherry laurel and other Prunus hedges release cyanogenic compounds as they wilt: harmless in a pile, dangerous to browsing livestock.
often confused with
- Oleander — Another common hedge plant with a genuine toxin, oleandrin, and its own separate answer.
quick answers
Can I compost boxwood clippings?
Healthy boxwood, yes. If your plants show the dark stem streaks and sudden defoliation of boxwood blight, bag the debris instead — the spores outlast anything a home pile does.
Is it worth chipping hedge trimmings?
For volume, yes. A season of shearings compresses to a fraction of its bulk once chipped, and chipping puts the woody stems on roughly the same schedule as the leaves.