The Hedgerow Is About to Change: What I’m Noticing on My April Walks — and Why Elder Is the Plant I’m Watching Most Closely

There’s a particular moment in spring that I look forward to all year. Not the first nettles — though they’re thrilling in their own brusque way — and not even the wild garlic, which arrives like a fanfare and fills the woods with the smell of something ancient and good.

It’s quieter than that. It’s the moment when the elder (Sambucus nigra) stops looking like a tangle of dead sticks and begins to show what it actually is.

I walked the same lane behind the house three times this week. On Monday the elder was still all bare-ish branch and unfurling leaf bud — dark, almost purplish, not yet committed to the season. By Thursday the compound leaves were fully out, that fresh, almost acid green that elder does in spring. And this morning, walking just before breakfast with the dog at my heels, I could see the first cream-coloured flat-topped flower clusters beginning to form where the flower stems meet the leaves.

Not quite open. Not yet. But close.

We’re perhaps a fortnight away from peak elderflower in the south of England — maybe three weeks in the north. And I find myself thinking about it in a way that feels less like a forager’s checklist and more like anticipation of a visit from an old friend.

Why Elder Gets Under Your Skin

There’s something about Sambucus nigra that resists reduction to a single category. It’s medicinal. It’s culinary. It’s deeply embedded in European folk tradition — hung over doorways, planted near dairies to keep flies away, used in everything from diaphoretic teas for fevers to face creams for the skin. For centuries, the entire tree — flowers, berries, bark, leaf — was considered a complete household medicine cabinet. Country people called it the “elder mother” and asked permission before cutting it.

This season, elderflower gets its own deep-dive post from me (coming in May when the flowers are actually ready). But this week I want to share what the science says about why those flowers are worth waiting for, and what’s already available to forage right now as we move through late April.

The Science Behind the Wait: What Elderflower Actually Contains

The chemistry of Sambucus nigra flowers has been studied extensively, and a 2024 review published in Foods (Nawirska-Olszańska et al., PMC11354468) confirms what traditional herbalists always knew: the wild form of elder is the most bioactively rich, containing higher concentrations of polyphenols than cultivated varieties — up to 394 mg of polyphenols per 100g dry matter.

The main active constituents of elderflower are:

Flavonoids — primarily quercetin, kaempferol, and rutin, plus their glycosides. These are the antioxidant and anti-inflammatory workhorses. Quercetin in particular has been extensively studied for its ability to modulate inflammatory pathways and stabilise mast cells — which is precisely why elderflower tea has a longstanding reputation as a hay fever remedy.

Phenolic acids — chlorogenic acid, caffeic acid, ferulic acid, and p-coumaric acid. Chlorogenic acid, which we’ve explored before in relation to spring wild greens, stimulates intestinal peristalsis and supports healthy blood glucose regulation.

Triterpenes — α- and β-amyrin and ursolic acid (the same compound found in hawthorn and nettle). A review in PMC10489118 notes that these triterpenes have demonstrated anti-inflammatory properties — specifically inhibiting elastase activity and reducing pro-inflammatory cell signalling.

Essential oils — contributing the characteristic muscat-and-lychee fragrance. These are volatile, which is why overheating elderflower destroys the perfume and why cold infusions often taste more complex than hot ones.

Antiviral potential: A frequently cited review (PMC8948669) examined the antiviral activity of Sambucus nigra flavonoids and found evidence that they can interfere with viral binding to host cells — specifically influenza — though the authors note most studies are in vitro and clinical evidence in humans remains limited. Honest evidence grade: promising but preliminary for antiviral action; moderate for anti-inflammatory and antioxidant activity in human studies.

What I’m Actually Foraging This Week

Elder isn’t ready yet. But late April is far from sparse — here’s what’s out on my walks right now:

Hawthorn blossom (Crataegus monogyna) — the first hedgerow trees in sunny spots are beginning to show flower buds, though full blossom is still a week or two off. The leaves, however, are beautiful — tender, bright green, nutty — and completely overlooked. A 2025 review in Journal of Ethnopharmacology (PMC12844126) confirms that hawthorn leaves contain significant quantities of hyperoside, vitexin, and oligomeric proanthocyanidins — the same cardiovascular compounds in the berries. I wrote about hawthorn’s cardiovascular science here.

Cleavers (Galium aparine) — still very much at their tender best. The growing tips are the part to use — pinched off between finger and thumb — before the plant flowers and stems toughen. My favourite use right now is a cold overnight infusion: a big handful of tips in a jug of cold water, left in the fridge overnight. It tastes of fresh cucumber and green things and I have a glass of it every morning.

Ground ivy (Glechoma hederacea) — still in flower, still good. I’ve been using small amounts in herb butter with a little lemon and wild garlic. Aromatic, slightly minty, genuinely lovely as a flavour note. Caution: avoid in pregnancy or if you have liver disease — it contains pulegone.

Alexanders (Smyrnium olusatrum) — the window is closing on these as they get taller and woodier. If you’re near the coast or a churchyard in the south, pick them now. The tender stems are extraordinary braised with white wine and butter. Full Alexanders post here.

A Spring Reflection: The Forager’s Calendar vs. The Weather

Something I’ve been thinking about on this week’s walks: the way spring in Britain resists schedule.

The books give you dates. The guides give you windows. And broadly, they’re right. But there’s enormous variation — between years, between north and south, between a sheltered river valley and an exposed hilltop. This year, spring is running roughly a week early in my part of the country. Wild garlic peaked noticeably earlier than last year. The hawthorn leaf came out faster. The elder is ahead of where I’d expect it to be.

Phenological studies show consistent advances in first leaf and first flower dates across UK plant species of around 2–4 days per decade since the 1970s. We are living inside that shift, and foragers notice it more clearly than almost anyone else.

The forager’s calendar that matters is the one you make yourself — by walking the same hedgerow, the same lane, the same patch of woodland, across multiple seasons. Not every year is the same. The joy is in the paying of attention.

Elderflower Preparations: What to Do When They Arrive

I know it’s a fortnight away, but it’s worth being ready — elderflower comes and goes fast, especially in a warm spring.

Elderflower cold infusion (the quick method): Pick flower heads when about 80% of florets are open — on a dry, warm morning when the fragrance is at its peak. Shake gently to release any insects. Place 6–8 heads in a large jug with 1 litre of cold filtered water, the juice of half a lemon, and a few thin lemon slices. Leave in the fridge for 4–6 hours. Strain and drink the same day. Pale, fragrant, almost floral water. No sugar needed.

Elderflower vinegar: Pack a small jar loosely with fresh flower heads. Cover with good white wine vinegar or raw apple cider vinegar. Seal and leave in a cool, dark place for two weeks. Strain. Use to dress salads, deglaze pans, or splash over steamed vegetables. The vinegar captures the quercetin and chlorogenic acid content in a preserved, shelf-stable form.

Safety: Elder ID and Lookalikes

Elder identification: Sambucus nigra has compound leaves with 5–7 oval leaflets. Flower clusters are flat-topped (corymbs), creamy white, strongly fragrant. Stems have a distinctive pithy centre when cut. The smell of crushed leaves is unpleasant — a useful feature for ID.

Do not confuse with Sambucus ebulus (dwarf elder / danewort) — a low-growing herbaceous plant (not a shrub or tree), with a strongly unpleasant smell and upright (not flat-topped) flower clusters. Dwarf elder is toxic and should never be consumed.

Do not eat raw elderberries — they are mildly toxic uncooked. Stems, leaves, bark, and unripe berries should always be avoided. Flowers are safe raw when correctly identified.

Never consume any wild plant unless you are 100% confident in your identification. If in doubt, leave it out.

Join Me on the Ground

If you’ve been reading this blog and thinking about learning to identify plants in person — I run foraging workshops throughout spring and summer. We walk together, identify plants in context, taste things, and talk about the science and the folklore. There’s something that happens on a walk like that — a shift in attention, a slowing down — that I find genuinely hard to replicate any other way. Upcoming dates at chloearchard.com.

And if you’re working on your health from the inside out alongside the seasonal eating — The Cellular Reset is the programme I’ve designed around exactly that: nourishment, circadian rhythm, epigenetic support, seasonal living. Wild food fits naturally into it, and the two together feel like the most coherent way I know to support long-term health.

References

Nawirska-Olszańska A et al. Elderflowers (Sambuci flos L.): A Potential Source of Health-Promoting Components. Foods. 2024;13(16):2560. PMC11354468.
Sidor A, Gramza-Michałowska A. Health-Promoting Properties of Elderberry. PMC10489118.
Knudsen GM et al. Elderberries — A Source of Bioactive Compounds with Antiviral Activity. PMC8948669. 2022.
Hawthorn review: Crataegus monogyna — Antioxidant Properties Review. PMC12844126. 2025.

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This content is for educational purposes only and does not constitute medical advice. Wild plants can be dangerous if misidentified. Never consume any wild plant unless you are completely confident in your identification. Some wild plants can interact with medications. Always consult your GP before using wild plants medicinally, particularly if you are pregnant, breastfeeding, or taking medication.

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