Blog

Tips, guides, and insights for pruning and plant care.

May 11, 2026

Hardening Off in Mid-May: Why Wind Kills More Seedlings Than the Last Frost

The Ice Saints have passed and the trays of basil, tomatoes and dahlias are stacked by the back door. Most guides will tell you to harden them off over ten days based on temperature. But the actual killer in a Northern European May isn't a -1°C night — it's the desiccation crash of an unhardened cuticle in the first six hours of unfiltered wind. Here's the wind-first protocol, the science behind it, and why a five-day schedule beats the textbook ten-day one if you get the first morning right.

May 10, 2026

Earthing Up Potatoes in Mid-May: The 23 cm Rule That Decides Your July Harvest

Most allotment guides tell you to earth up your potatoes 'when the shoots are about a hand high.' That single piece of folk-measurement is responsible for more lost yield than any pest in a Northern European May. Earth up too early and you smother the leaves the plant needs to fund its own tubers. Earth up too late and the lower stem has already lignified and won't throw new stolons. The window is narrower than most gardeners think, the trigger is 23 cm rather than the calendar, and the variety in your row decides whether a second hilling doubles your crop or just tidies the bed.

May 9, 2026

First-Year Strawberries in May: Why Pinching Off Every Flower Now Triples Next Summer's Harvest

Walk into any garden centre this week and you'll see the same scene: trays of strawberry plugs in full white flower, ready to plant out. Almost every gardener who buys them this May will plant them, water them, and wait for fruit. The ones who actually triple next year's crop do something that feels deeply wrong — they pinch off every flower this season, and they cut every runner the moment it appears. Here's why the first-year sacrifice is the single biggest yield decision in a strawberry bed, what 'pick flowers, not fruit' really means in a Northern European May, and how to read your existing patch this week to know whether it needs the same treatment or its opposite.

May 8, 2026

Bearded Iris in Mid-May: Why the Rhizome Wants Sun on Its Back, and the Fan-Trim Myth That Steals Next Year's Bloom

Almost every perennial in your border wants its roots cool, dark and mulched. The bearded iris is the exception that proves the rule — its rhizome should sit half out of the soil with sun on its back, and the moment you mulch it in a damp Northern European May, soft rot starts dissolving the crown from the inside out. Here's the mid-May routine that catches rhizome rot before it spreads, the staking trick that holds the bloom stem without snapping it, and why the fan-trim every magazine still recommends after flowering is quietly subtracting next year's flower count.

May 7, 2026

Wisteria After Flowering: Why May Is for Bending and Tying, Not Cutting

Most wisteria advice talks about August and February — the famous two-prune system. But there's a quieter window that opens the moment the racemes drop, and what you do with the new green whips between mid-May and the end of the month decides whether the plant builds flowering spurs or wastes the year on runaway leaders. The trick isn't cutting. It's bending.

May 6, 2026

Rhododendron Deadheading in May: Why You Should Snap, Not Snip — And How to Save Next May's Flowers

Your rhododendron has just dropped its blossoms and the spent trusses are still stuck to the bush like sticky brown badges. In the next two weeks the plant decides — based on what's right behind each truss — whether to make seed or set flower buds for next May. Snip with secateurs and you'll cut off the new growth that carries those buds. Pinch with thumb and forefinger and you redirect the plant's energy exactly where you want it.

May 5, 2026

Ice Saints 2026: Why Soil Temperature Beats the May 15 Calendar Rule

Mamertus, Pancras, Servatius, Boniface and cold Sophie arrive May 11 to 15. Folklore says wait until they pass before bedding out tomatoes, dahlias and basil. But the saints don't know your soil temperature, your dew point, or that this April was the warmest on record. Here's what to actually check before you plant out — and the three plants that should still wait, no matter what the thermometer says.

May 4, 2026

Daffodil Leaves in May: Why That Tidy Knot Steals Half of Next Year's Flowers

The April daffodils are done, the borders look messy, and the old gardening books tell you to knot, braid or rubber-band the foliage to keep things tidy. Don't. The six weeks after flowering are when the bulb does almost all of next year's work, and a single tied leaf reduces photosynthesis by roughly a third. RHS trials measured it. Here's what to do instead — and why a daffodil that goes blind almost always traces back to a May decision.

May 3, 2026

Peony Disbudding in May: The Pea-Sized Decision That Triples Your Bloom Size

Three buds on a peony stem don't give you three flowers — they give you three competing flowers that share the same pot of energy. Pinch off the side buds in the first week of May, while they're still pea-sized, and the terminal bud swells into a single dinner-plate bloom that lasts twice as long in the vase. Plus when to stake, why the ants stay, and how to harvest at the marshmallow stage.

May 2, 2026

Box Caterpillar in May: Why the First Webs Are Hiding Deep Inside Your Hedge

By the time the outside of a box hedge looks chewed, the caterpillars have already been feeding for two to three weeks — from the inside out. The first generation of Cydalima perspectalis hatches in May across most of northern Europe, and the only way to catch it before defoliation is to part the foliage and look for fine silk webbing on the inner branches. Here's exactly what to look for, when to spray, and why the wrong spray at the wrong stage does nothing.

May 1, 2026

Rose Suckers in May: Why a Clean Cut Makes Them Come Back Stronger

If suckers keep firing up from the base of your rose, you're probably making the problem worse every time you snip one off. Suckers grow from adventitious buds embedded in the rootstock — and a clean cut at soil level leaves the bud cluster intact, ready to throw up two or three new shoots next month. The only fix is to scrape down to the rootstock and tear, not snip.

April 30, 2026

Pinching Out in May: The Thumbnail Decision That Doubles Your Sweet Peas, Dahlias and Tomato Harvest

Most gardeners look at a 10cm sweet pea, a knee-high dahlia and a leggy tomato in May and don't touch them — they're growing, why interfere? Because a thumbnail-sized nip at the growing tip in the first half of May overrides the plant's own internal command to grow tall and wakes up the dormant side shoots that decide your summer's flower count and tomato yield.

April 30, 2026

Tying In Climbing Roses: Why Horizontal Canes Mean Blooms Top to Bottom

If your climbing rose flowers in a tuft at the top and stares at you with bare cane underneath, the problem isn't the variety — it's the angle of the canes. Train them horizontally in late April and May, while the new wood is still bendable, and the same plant fires off lateral shoots along every inch, each one ending in a bloom.

April 29, 2026

Lilac Pruning: The Two-Week Window That Decides Next May's Blooms

Your lilac flowered beautifully this May. Now you've got a narrow two-week window to prune before it quietly sets next year's flower buds — and most gardeners miss it. Here's what to cut, what to leave, and why a single late-June trim can wipe out an entire season of fragrance.

April 28, 2026

The Chelsea Chop: How a Late-May Haircut Doubles Your Summer Bloom Window

Most gardeners think pruning is what you do to plants in winter. But there's a counter-intuitive technique borrowed from Chelsea Flower Show week that can push your perennials' flowering season back by four to six weeks — and stop the late-summer flop that ruins so many borders.

April 17, 2026

Hydrangea Pruning in April: Why One Wrong Cut Can Cost You a Summer of Blooms

April is the month most gardeners reach for the secateurs and ruin their hydrangeas. The wood looks dead, the buds are swelling, the urge to tidy is real. But which cuts help and which ones quietly delete your summer show depends entirely on one thing: the type of hydrangea you own.

April 16, 2026

Cresco vs PictureThis: Which App Actually Helps You Care for Your Plants?

You snap a photo of your struggling rose bush. Both Cresco and PictureThis tell you it's a hybrid tea rose. But here's where the paths split: PictureThis stops at identification, while Cresco builds you a custom pruning schedule based on your local weather.

April 16, 2026

When to Prune Plants: A Month-by-Month Guide for Home Gardeners

Pruning at the wrong time can kill your favorite rose bush, prevent your fruit trees from producing, or leave your shrubs vulnerable to disease. Most gardeners approach pruning with guesswork, cutting whenever plants "look overgrown" without considering the plant's natural cycles or local climate patterns.

April 15, 2026

When to Prune Roses: A Complete Guide

Learn the exact best time to prune roses based on variety, climate, and season for healthy blooms year after year.