Autumn · Topic
Last prune before frost
One last tidy for what wind can lever, then stop: subshrubs lightly, heleniums deadheaded, evergreen hedges closed six weeks before your first frost.
Lavender and rosemary
Shear once after flowering to keep a compact mound. Never cut into bare wood: it carries no buds. Where frost comes early, skip the shear — new soft growth scorches.
Heleniums and late daisies
Deadhead heleniums to keep them flowering into autumn. Stop when frost is close: save the energy for the crown.
Hedges and the weather rule
Evergreens close six weeks before your first frost. Cut only on a dry, frost-free day so fresh wounds callus instead of dying back.
Related species guides
June 4, 2026
Beech Hedge Trim: The Late-June Window
Cut a beech hedge in May and the new leaves brown at the edges; cut it in August and it sulks all winter. The late-June window — and how to time it.
Read moreAugust 16, 2026
Heleniums flower to October if you deadhead now
Deadhead heleniums in August by cutting each spent bloom back to a lower side shoot, not the stem — and sneezeweed keeps flowering right into October.
Read moreJuly 1, 2026
Lavender: cut it the week the flowers fade
Prune English lavender the week its flowers fade — a third off, never into the bare wood it can't regrow from. Wait till autumn and it goes woody.
Read moreJune 17, 2026
A June trim makes a privet hedge twice as thick
Trim a privet hedge in mid-June, not just late summer, and it answers with dense, twiggy regrowth. Here's how hard to cut — and why one trim won't do.
Read moreAugust 13, 2026
Rosemary needs one last trim before autumn
A light trim now keeps rosemary bushy, but late summer is the last safe window — and there's one cut it never grows back from. Here's the line.
Read moreSeptember 7, 2026
Yew's once-a-year trim holds its edge all winter
A yew hedge needs just one trim a year, and early autumn is the moment — cut now and the crisp edge holds right through winter with no soft regrowth.
Read moreWant dates that move with your frost?
Cresco sets the last safe trim window from your forecast, not an average.
Try Cresco Free