What to forage this week: four spring plants at peak right now

Focus keyphrase: what to forage in spring UK | spring wild plants foraging | wild food March April
Meta description: Four wild plants to look for on your walks right now — cleavers, dandelion, sorrel, and ground ivy. What they contain, why they matter, and how to use them.

The last week of March into April is one of the most productive foraging windows of the entire year. The countryside shifts noticeably: hedgerows thicken, verges brighten, and the same lanes you’ve walked all winter suddenly feel alive with things worth picking. Spring wild greens emerge fast and peak early — most of them will be past their best by the time summer arrives. The time to go out is now.

This week I’m highlighting four plants that are at or approaching their best right now across the UK. Each one is easy to identify, genuinely useful in the kitchen, and backed by research that makes them more than just “edible weeds.” These are spring tonics in the original sense — plants that have been used for centuries to support the body’s transition out of winter, and that happen to have good modern science explaining why.

As always: never eat any wild plant unless you are 100% confident in your identification. If in doubt, leave it out.

1. Cleavers (Galium aparine) — the original spring tonic

If you’ve ever come home from a walk with sticky green stems attached to your coat, you’ve met cleavers. Galium aparine is one of the most abundant and unmistakable wild plants in Britain — a scrambling annual that uses tiny hooked hairs to cling to everything it touches. Right now it’s young, bright green, and at its most potent.

Identification: Whorled leaves arranged in rings of 6–8 around a square, sticky stem. Tiny white four-petalled flowers will arrive later in spring. The whole plant clings to clothing and animal fur. Found scrambling through hedgerows, woodland edges, and disturbed ground almost everywhere in the UK.

The science: Cleavers has been in the British Herbal Pharmacopoeia since 1983. A 2020 study in Molecules (Stankovic et al.) identified key active compounds including asperuloside and asperulosidic acid (iridoid glycosides with immunomodulatory and anti-inflammatory activity), tannins, flavonoids, and chlorogenic acid. The study found significant antioxidant and immunostimulatory activity in cleavers infusions, consistent with traditional use as a lymphatic tonic.

Recipe idea: Cleavers and cucumber green shot — blend a large handful of fresh young cleavers with half a cucumber, a squeeze of lemon, a small knob of fresh ginger, and enough cold water to blend smooth. Strain and drink immediately. Do not boil cleavers — heat destroys the most active compounds.

2. Dandelion (Taraxacum officinale) — the most nutritious weed in your garden

Taraxacum officinale is arguably the most nutritionally dense wild green in the UK. Right now — before it flowers and becomes bitter — the leaves are at their most tender and usable.

Identification: Unmistakable. Deeply toothed leaves forming a rosette at ground level, teeth pointing back towards the centre. Hollow stem exuding white milky latex when broken. Single bright yellow flowers on unbranched stems. No dangerous lookalikes — cat’s ear (Hypochaeris radicata), the most similar species, is also edible.

The science: Dandelion leaves contain approximately 4 times more vitamin C than spinach per 100g, along with 187mg calcium per 100g, meaningful iron, beta-carotene, and bioactive polyphenols including chicoric acid, taraxacin, and luteolin. A 2009 human pilot study in the Journal of Alternative and Complementary Medicine (Clare et al.) demonstrated a statistically significant increase in urinary frequency and volume — confirming the traditional diuretic use in actual human subjects. A 2025 review in Nutrients summarised preclinical evidence showing dandelion extracts protect against liver damage and support lipid metabolism.

Recipe idea: Dandelion leaf salad with warm lemon and anchovy dressing — warm olive oil with two dissolved anchovy fillets and a crushed garlic clove, toss with young dandelion leaves off the heat, squeeze over half a lemon, scatter with toasted pine nuts and shaved pecorino. Serve immediately.

3. Sorrel (Rumex acetosa) — the wild plant that tastes like lemon

A leaf that tastes unmistakably of lemon — from a plant growing wild in any damp meadow. Rumex acetosa is one of the most useful culinary wild plants available in Britain, and April is the beginning of its best season.

Identification: Arrow-shaped leaves with two backward-pointing lobes at the base. Bright fresh green. The taste test is definitive — a young sorrel leaf should taste sharply of lemon. Docks (related, also edible) have no such flavour. Reddish flower spikes emerge later in spring.

The science: The sharp flavour comes from oxalic acid — also the main dietary caution. In normal culinary quantities (a handful) this is not a concern for healthy adults; avoid large quantities if you’re prone to kidney stones. Sorrel also contains vitamin C, quercetin, and hyperoside — flavonoids with antioxidant and anti-inflammatory properties confirmed in a 2020 phytochemical review of the Rumex genus (Paunovic et al., Trees). Its traditional role as a spring tonic reflects high vitamin C content in a season when fresh greens were scarce.

Recipe idea: Sorrel sauce for salmon — soften a shallot in butter, add a large handful of shredded sorrel and stir briefly until wilted (30 seconds), add 100ml crème fraîche, season well, serve immediately over grilled salmon. One of the great quick wild food dishes.

4. Ground ivy (Glechoma hederacea) — the forgotten spring herb

Low-growing, mat-forming, with small rounded scalloped leaves and tiny bright purple flowers right now. Crush a leaf and it smells powerfully aromatic — minty, slightly resinous. Glechoma hederacea grows in almost every hedgerow, shady verge, and garden edge in Britain, yet most people have never heard of it as a food plant.

Identification: Small kidney-shaped leaves with scalloped edges on creeping square stems. Slightly hairy, strongly aromatic when crushed — the smell is the clincher. Tiny two-lipped purple flowers from March onwards. Found in shady hedgerows, woodland edges, and gardens. No dangerous lookalikes when the smell is taken into account.

The science: Ground ivy was historically used to flavour ale before hops replaced it — hence its old name “alehoof.” A 2023 study in Foods (Varga et al.) identified high levels of rosmarinic acid, chlorogenic acid, caffeic acid, and rutin — polyphenols with established anti-inflammatory, antioxidant, and antimicrobial properties. A 2022 study in Plants confirmed significant antibacterial activity and antioxidant capacity, supporting traditional use for respiratory and inflammatory conditions.

Note: Use in culinary quantities only (a small handful). Contains pulegone, which in very large doses is harmful. Avoid during pregnancy.

Recipe idea: Ground ivy and lemon balm spring tea — steep a small handful of fresh ground ivy flowers and leaves with a few lemon balm leaves in just-boiled water for five minutes. Sweeten with a little honey. Aromatic, calming, and a practical daily way to take the plant’s anti-inflammatory compounds through April and May.

Where to find all four this week

All four plants are widespread across the UK. The best spots: quiet country lanes with established hedgerows, woodland edges, and damp grassland. Cleavers and ground ivy favour the shaded base of hedges. Dandelion and sorrel prefer open ground with reasonable light.

Take a small basket, a pair of scissors, and a field guide if you’re new to any of these plants. The smell test on ground ivy and the taste test on sorrel are your most reliable confirmation tools. Pick the freshest, youngest growth. Leave plenty behind.

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References
Stankovic, M. et al. (2020). Immunomodulatory activity and phytochemical profile of infusions from cleavers herb (Galium aparine L.). Molecules, 25(17), 3721. PMC7464609
Clare, B.A., Conroy, R.S., Spelman, K. (2009). The diuretic effect in human subjects of an extract of Taraxacum officinale folder over a single day. Journal of Alternative and Complementary Medicine, 15(8), 929–934. PMID: 19678785
Varga, E. et al. (2023). Studying the functional potential of ground ivy (Glechoma hederacea L.). Foods, 12(24). PMC10707382
Paunovic, D. et al. (2020). Sorrel (Rumex acetosa L.): not only a weed but a promising plant. Trees, 35, 7–23.

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Want to find all four of these plants in good company? Chloe’s spring foraging workshops cover the full seasonal picture — identification, sustainable harvesting, and what the science actually says about what you’re eating. Find upcoming dates here. And if the cellular health angle is catching your attention — wild spring greens like these, eaten regularly through the season, are part of the nutritional philosophy behind The Cellular Reset programme. Vitamin C, quercetin, rosmarinic acid, flavonoids: this is what eating with the seasons actually means.

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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. Ground ivy should be used in culinary quantities only and avoided during pregnancy.

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