Why Elderflowers Are Worth the Early Start

Elder is one of those hedgerow plants that gives generously from late spring right through to autumn, and late May into June is when it truly earns its keep. The creamy-white flower heads, known as elderflower, arrive in flat-topped clusters that look almost like lace doilies hung out on the branch. Pick them at their peak and you have the makings of a cordial that tastes of summer itself — floral, faintly musky, and bracing with citrus.

The trick is timing. Elderflower is at its best on a dry, sunny morning, ideally after a couple of rain-free days. The pollen is dry and the scent is strongest then. Go out too early and the heads are still damp with dew; leave it until the afternoon and the fragrance has faded. Aim for that golden window between mid-morning and midday, when the sun has lifted the dew but hasn't yet started to wilt the delicate florets.

Take a basket or a cotton bag rather than a plastic tub. Elderflower bruises and sweats if it's crammed into something airtight, and a squashed head goes brown alarmingly fast.

Choosing Your Spot — and Leaving Some Behind

Elder grows almost anywhere: hedgerows, woodland edges, railway embankments, the backs of allotments. But not every bush is worth picking from. Give a wide berth to anything growing within a few metres of a busy road, where exhaust dust settles on the flowers, and to plants on sprayed verges or beside fields that look freshly treated. Low-hanging heads near dog-walking paths are best avoided for obvious reasons.

There's a foraging courtesy worth remembering, too. A good rule is to take no more than a third of the flower heads from any single bush, and to leave the ones that are past their best. Elder is a valuable wildlife plant — the flowers feed bees, hoverflies and beetles, and the berries that follow are a lifeline for blackbirds, thrushes and dormice later in the year. If you strip every head, you rob the hedge of its autumn harvest.

How to tell a good head from a poor one:

• Look for uniform creamy-white florets, all open, with no brown edges.
• The scent should be sweet and heavy — if it smells of nothing, walk on.
• Avoid heads with green unopened buds in the centre; they'll turn bitter.
• Skip anything with blackfly clustering on the stems, which is common on stressed plants.

Pick by the stalk, snipping a few centimetres below the head, and lay the heads loosely on top of one another rather than pressing them down.

Cleaning and Preparing Without Losing the Scent

The old advice to "shake well and never wash" is worth following, if you've picked sensibly from clean ground. Washing knocks out the pollen and dilutes the very thing you're after. Instead, give each head a gentle shake over the basket to dislodge any passengers, then inspect it. Small beetles and the odd caterpillar are normal — tip them back outside where you found them.

If you're making cordial, you can leave the heads whole and simply steep them. For fizz, a little more care pays off, because you want the florets to release their sugars evenly. Either way, use the flowers the same day you pick them. An overnight sit in the fridge is acceptable, but by the second day they'll have browned and the flavour drops off a cliff.

You'll want to strip the florets from the thicker green stalks, which carry a grassy, slightly unpleasant bitterness. Run a fork gently down the stalk or simply rub the heads between your fingers over a bowl. A few tiny stems won't hurt, but big woody ones will.

Making a Classic Elderflower Cordial

The quantities below make roughly 1.5 litres of cordial, enough to see you through a summer of diluting with still or sparkling water.

• About 25 large elderflower heads, florets stripped from the stalks
• 1.5 kg granulated sugar
• 1.5 litres water
• 2 unwaxed lemons, zest pared in strips and juice reserved
• 1 orange, zest only
• 50 g citric acid (available from pharmacies and home-brew shops)

Bring the water and sugar to a gentle simmer, stirring until the sugar dissolves completely, then take it off the heat and let it cool to just warm. Pour it over the elderflowers, citrus zest and citric acid in a large sterilised bowl, add the lemon juice, and stir. Cover and leave somewhere cool for 24 to 48 hours, stirring occasionally.

Strain through muslin or a clean tea towel — don't squeeze the flowers, or you'll draw out bitterness — and bottle in sterilised bottles. It keeps in the fridge for several weeks, or freeze in ice-cube trays for winter gin and tonics.

Turning the Same Harvest into Elderflower Fizz

Fizz is simply cordial that's been allowed to ferment very lightly, giving it a natural sparkle. Use the same method, but hold back the citric acid and instead stir in a tablespoon of white wine vinegar or the juice of an extra lemon. Strain the syrup when it's ready, then pour it into strong swing-top bottles, leaving a good 5 cm of headspace.

Leave the bottles somewhere cool and out of direct sun for three to five days, releasing the pressure each day by easing the seal. You're looking for a gentle hiss, not a geyser. Once it tastes right, move the bottles to the fridge to slow the fermentation right down. Drink within a fortnight — this is a fresh, living drink, not a cellared wine.

A safety note: never bottle a fermenting drink in thin glass, and check the pressure daily. A bottle that's been left too long can become genuinely dangerous.

Cooking and Conservation by the Campfire

Elderflower cordial earns its place at any woodland camp, mixed with sparkling water and a sprig of mint, or splashed into a mug of hot tea as the light goes down. If you're cooking over open flames, remember the woodland code: use a established fire pit or a raised fire bowl, keep flames clear of overhanging branches and roots, and never leave a fire unattended.

And as you enjoy the harvest, give a little back. Elder regenerates readily from hard pruning, so if you know a bush that's becoming leggy and shaded out, a careful winter trim will keep it flowering for years. Plant a sapling in a hedgerow gap if you have the space, and leave the berry-laden heads well alone in autumn so the birds get their share. The pleasure of a hedgerow is that it keeps giving — provided we take only what we need and put something back.