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Harvest calendar

Poisonous wild berries

Learn to recognise the poisonous berries too, so you know to avoid picking them. The severity of poisoning depends on the species and the amount eaten.

If you suspect poisoning

  1. Try to identify which berry was eaten.
  2. Empty and rinse the mouth.
  3. Quickly take activated charcoal, which prevents the absorption of toxic substances.
  4. Contact the Poison Information Centre for further instructions.

Poison Information Centre (24 h): 0800 147 111

The most poisonous species

Lily of the valley

Convallaria majalis

A perennial herb 10–25 cm tall. The berries are round, green when unripe and red or orange-red when ripe. Contains glycosides that affect heart function, and saponins; the toxic effect also targets mucous membranes, the digestive tract and the central nervous system.

Bittersweet nightshade

Solanum dulcamara

A sprawling, climbing subshrub 30–200 cm tall. The berries are oblong, about 10 mm long, glossy and bright red when ripe. Contains alkaloids affecting the digestive tract and central nervous system, including solanine.

Baneberry

Actaea spicata

A perennial herb 40–70 cm tall. The berries are large, egg-shaped and glossy black when ripe. Contains toxins affecting mucous membranes, the digestive tract and the central nervous system; the plant's sap irritates the skin.

Herb Paris

Paris quadrifolia

A perennial herb 15–30 cm tall. The berries sit singly at the top of the stem and are large, foul-smelling, flattened-round and blackish blue. Contains toxins affecting the digestive tract, central nervous system and heart, including saponins.

Other poisonous wild berries

  • European yew (Taxus baccata)
  • Angular Solomon's seal (Polygonatum odoratum)
  • Solomon's seal (Polygonatum multiflorum)
  • Guelder rose (Viburnum opulus)
  • Black nightshade (Solanum nigrum)
  • Alder buckthorn (Rhamnus frangula)
  • Fly honeysuckle (Lonicera xylosteum)
  • Blue honeysuckle (Lonicera caerulea)
  • Red baneberry (Actaea erythrocarpa)
  • Mezereon (Daphne mezereum)
  • May lily (Maianthemum bifolium)
  • Red elderberry (Sambucus racemosa)
  • Bog arum (Calla palustris)

Source: Luonnonmarjat tutuiksi guide (Marttaliitto ry & Arktiset Aromit ry); Poison Information Centre.

Edible wild berries

12 productive berry species with identification marks: where to find them and when to pick – from wild strawberry to crowberry.