9 Step Clematis Montana Pruning Routine with Felco 8 Secateurs After Flowering
Group 1 clematis like Montana need cutting once the May flowers fade, because next year's buds form on the growth that follows. A Felco 8, with its rotating handle and 25mm cut capacity, handles the woody base stems and the dozens of cuts a mature plant demands.
Montana sits in Pruning Group 1 alongside Clematis alpina and macropetala. These plants set next year’s flower buds on growth that ripens through summer, so a hard February cut takes off the wood that would have carried the next display.
The window for heavy pruning is short, roughly three weeks after the petals drop, which usually lands in late May into mid June across most temperate gardens. Mature forms such as Elizabeth or Grandiflora can throw four metres of growth in a single season, and that turns the task into a question of access and weight handling as much as careful cutting.
The Felco 8 earns its place because the bypass blade closes cleanly on stems up to 25mm. Its rotating lower handle saves the palm through a session where fifty cuts vanish into a tangle. Anvil pruners crush the hollow older stems of Montana and invite dieback, so a sharp bypass cut genuinely matters here.
Why the cut waits until the flowers drop
The buds for next May form on shoots that extend after this year’s flowering finishes. Winter and early spring pruning slices into that future flowering wood, and that single fact drives the whole logic of Group 1 timing.
Sap is the second reason. Montana runs sap freely, and cuts made after flowering seal and callous faster in warm late-spring weather than cuts made in cold, wet conditions. On a south-facing wall, June cuts can close visibly inside a fortnight. February cuts on the same plant weep and rot at the tip.
The working pass through an overgrown Montana
Work top to bottom and back to front. Clear the visible mass first, then reach into the old structure once light has opened up through the plant.
- Wipe the Felco 8 blades with a cloth and a drop of methylated spirit before you start, so fresh cuts are not carrying clematis wilt spores in from another plant.
- Stand back and locate the main framework stems. These are the three to six woody leaders that carry the plant, and they generally stay put.
- Take out dead growth first. Grey, brittle stems that snap under a light bend go back to a live junction.
- Cut away tangled or crossing shoots that rub against each other. Keep the shoot with room to grow cleanly.
- Shorten flowered shoots by a third to a half, cutting just above a pair of fat buds or a side shoot.
- Thin the crowded points on the trellis or wires where three or more stems have bunched together, removing the weakest growth.
- Bring the height down if the climber has outgrown its support. Take the longest leaders back to a workable framework, but avoid bare old wood with no buds, since Montana rarely breaks well from it.
- Tie retained growth to the support with soft jute twine. A hand-width gap between stems lets air move through.
- Clear every prunings from the crown and the ground below. Montana debris left at the base is the commonest harbour for next spring’s mildew.
A full-grown plant covering a 3m by 2m wall panel will easily yield two to three barrow loads from this session. Allow ninety minutes. If the cuts begin to tear halfway through, stop and sharpen the Felco 8 before carrying on.
Sharpen first
A Felco 8 honed on a carbide blade-mate at the bench should sever a clematis stem in one pass. Torn tissue hands botrytis an easy entry point, especially where old stems sit in a damp mass against a wall or fence.
Sharing a wall with trained fruit
If an espalier apple or pear shares the same boundary, the two plants pull in opposite directions and that contrast shapes the job. The espalier is built around permanent horizontal tiers, usually wired at 40cm to 45cm intervals, with the current season’s shoots shortened to three leaves above the basal cluster in July or August and the structure then fixed by winter pruning.
Montana will fan across wires and tie in, but it never holds a tier line. Force it into strict horizontals and it answers with a thicket of vertical water shoots fighting the training. The workable compromise on a mixed wall is to give Montana the top third above the espalier framework, let it cascade down over the trained fruit while it flowers, then clear it off the fruit tiers during the June pruning so the apple keeps its light.
Where both Niwaki secateurs and a Felco 8 are to hand, divide the work by stem size. The smaller Niwaki blade suits the fine espalier shoot pruning, and the Felco 8 stays in reserve for the heavier Montana stems down at the base.
When the plant has gone bare below
The nine-step cut suits a healthy, vigorous Montana that has simply outgrown its support. A plant that has become a bare tangle of ancient stems with every shoot at the very top is a slower renovation problem altogether. Montana resents hard cutting into old wood, and recovery can take two or three seasons when it happens at all.
A forty-year-old Montana on a collapsing pergola forces a decision: nurse a reluctant old framework through a long recovery, or clear the site and train a fresh plant from the base. The renovation gamble turns entirely on whether live bud survives below that high canopy. Strip away the tangle on a warm June afternoon and you can see it directly, the dormant buds either swelling along the lower wood or absent from stems that have gone permanently woody. That inspection decides which plant you are actually keeping.
