8 Step Lavender Hidcote Hedge Trimming with Felco 2 Secateurs Over a 6-Metre Run

Why Hidcote opens up after a late or low cut

Hidcote is on its own roots and breaks readily from green growth, yet old grey wood is another matter. Rosemary will occasionally send growth from a woody base; lavender usually will not. Once a stem has turned brown and fibrous at the bottom, a cut into that material leaves a dead gap.

That governs the whole trim. Keep the blade in the soft grey-green growth made this season, with 2 to 3 cm of the current year’s wood left above the woody collar. Go lower and the plant has no useful buds left to rebuild the dome.

A 6-metre run should be read as one visual line. Before cutting, sight along it at eye level and pick out the plants that have run tall and the ones pushed sideways by a wet June. A length of garden twine pulled taut between two canes at 45 cm gives the row a fixed top height, so the cut follows a line the eye can trust.

The cut across the hedge

1. Deadhead any spent flower spikes left from a July show. Snip each stalk down to the first pair of leaves so the canopy is open enough to show the dome beneath.

2. Set the twine at 45 cm and stake it at both ends of the 6-metre run. If the bed slopes, check the line with a spirit level before the first cut.

3. If you are right-handed, begin at the right-hand end. The clipped stems then fall away from the uncut growth, keeping the sight line clear as you move along the row.

4. Cut the top first. Hold the Felco 2 flat and bring the dome down to the twine in short 10 to 15 cm passes, letting each small section join the last. Hidcote stems are fine enough for the bypass blade to move cleanly through them, and the small cuts make the curve easier to control.

5. Shape the shoulders next. Round the sides down and angle them slightly inward, leaving the base of each plant wider than the top. Light then reaches the lower shoots, which helps the middle of the plant stay clothed.

6. Sharpen halfway. After roughly three metres, the blade often begins to crush the soft stems. A few strokes on a Felco 2 carbide stone brings the edge back in under a minute.

7. Move down the line plant by plant. Blend each dome into its neighbour so the gaps between crowns close visually at the trimmed height.

8. Step three metres back and walk the full 6 metres. A single proud stem can spoil the line, and once seen it is usually a 5-second correction.

By hand, the whole run takes 40 to 60 minutes. Hedge shears or a cordless trimmer save time, although they tear the soft stems and leave a bruised brown cast over the dome for about a week. The Felco 2 bypass cut leaves a cleaner surface.

Keeping the cut wood

The trimmings from a 6-metre Hidcote run fill a trug twice over. Non-flowering side shoots taken during this trim root readily as semi-ripe cuttings: strip a 7 to 9 cm shoot, dip it in hormone powder, and line it out in a 50:50 mix of multipurpose compost and perlite.

Timing, soil, and the shape of the plant

Hidcote flowers once, on spikes that open through June and July depending on latitude. The shaping cut belongs after that flush has faded, usually late August into early September across most of the UK and northern Europe. That timing leaves six to eight weeks of soft regrowth before the first frosts harden it off.

An October cut creates a problem. The new growth made after cutting has too little time to firm up, and that soft tissue is the part most likely to rot or burn during a cold, wet winter.

April is only a light tidy. Remove winter dieback, blackened tips, and the smallest amount needed to neaten the dome, because the buds carrying the June flowers are already forming on last year’s wood. A hard spring prune gives a cleaner outline at the cost of a season of bloom; the main structural work has already been done in August, with April acting as a shallow correction.

The bed matters as much as the calendar. Hidcote struggles in heavy, wet soil, and the plants that splay open worst are often the ones sitting in compacted clay with a damp crown. At planting, lifting the bed with horticultural grit helps: work 2 to 3 cm of sharp grit into the top 15 cm so the base dries quickly and the stems hold themselves upright.

That drainage affects the annual trim. A dry, open crown usually needs shaping. A wet, congested crown turns the same job into repair work, because the centre has already started to fail.

Plant count, blades, and feeding

At 30 cm centres, a 6-metre hedge holds 20 plants if the first and last are set flush with the bed edges. Plant at both end points and the count becomes 21. Tighten the spacing to 25 cm and the same run takes 24 plants, closing into a solid line a full season earlier, while the side shoulders need a firmer annual cut as the crowns compete.

An established Hidcote generally takes 8 to 12 individual cuts across the top dome and another 6 to 10 down the shoulders. Across 20 plants, that is 280 to 440 bypass cuts in one session. A blade that began sharp will usually drag by plant 12 if it is left untouched, which is why the stone earns its pocket space. The Felco 2 uses a replaceable cutting blade, part number 2-3, so a worn edge can be renewed cheaply.

Feeding is where many tidy hedges are spoiled. Lavender is a poor-soil Mediterranean plant, and rich feeding pushes lush, soft, flopping growth while reducing the flowering display the hedge is meant to carry. General-purpose feeds have no useful role here. If the soil is genuinely lean, a single light dressing of a low-nitrogen, potassium-leaning feed in spring is enough; many growers give no feed beyond the annual grit topdressing.

This is the reverse of the regime used for acid-loving plants. A blueberry or rhododendron in the same garden takes Vitax ericaceous feed because it needs nitrogen and acidity, while Hidcote is content at neutral to slightly alkaline pH and performs best with lean, free-draining roots. Mix the two feeding zones and the lavender goes leggy on ericaceous nitrogen, while the blueberry yellows in chalky grit meant for the lavender. Keep those zones physically separate and the trim stays close to a 45-minute shaping job from year to year.

Mulch with grit or gravel. Bark and compost hold moisture against the crown, and a damp Hidcote crown during a January thaw is one of the common causes of a plant dying in the middle of an otherwise healthy run. Grit reflects heat, sheds water, and keeps the base of each dome dry.

Years seven and eight are where judgement becomes harder. A well-trimmed Hidcote can stay productive for a decade, yet the woody base creeps upward with every cut and the band of usable green growth gradually narrows. Cuttings taken from earlier trimmings may give a cheaper replacement crop than buying plants again, but the timing is never exact. The awkward part is judging when that living structure has become an old frame with too little green left to work.