The Czech landscape shifts in a fairly predictable annual rhythm, though year-to-year variation in temperature and rainfall can compress or extend each season by two to three weeks. The calendar below reflects typical conditions at lowland and mid-altitude sites (200–600 m) across Bohemia and Moravia. Higher elevations in Šumava or Krkonoše run two to four weeks later.
This is not a harvest guide — it is a reference for understanding when species are available, not a recommendation to collect them without proper identification knowledge.
March — First Signs
In mild years, the first gatherable material appears in mid-March. Stinging nettles (Urtica dioica) push up in nitrogen-rich spots — riverbanks, forest edges, old farm margins — as soon as daytime temperatures stay above 8°C consistently. Young nettle tips, before flowering, are the target. By late March, wood sorrel (Oxalis acetosella) appears in shaded forest floors, and ground elder (Aegopodium podagraria) in disturbed soils at forest edges.
April — Peak Wild Garlic Season
April is defined by Allium ursinum (wild garlic, ramsons). At lowland forest sites in south Bohemia and the Moravian lowlands, the leaf harvest runs from late March through April. At mid-altitude beech forests — Křivoklát, the Bohemian-Moravian Highlands — the peak falls in the second and third weeks of April.
Dandelion (Taraxacum officinale) is fully established by April across meadows, pastures, and garden margins throughout the country. Young leaves before flowering are used in salads; the flowers in syrup and wine; the roots, harvested separately in autumn, in teas. Dandelion has no dangerous lookalike in a Czech context, making it a commonly recommended starting point for new foragers.
Also appearing in April: garlic mustard (Alliaria petiolata) in woodland margins, hawthorn (Crataegus monogyna) flower buds and young leaves, and the first elderflower clusters (Sambucus nigra) at warmer lowland sites by late April.
May — Elderflower and Early Fungi
May brings the elderflower season across most of Bohemia and Moravia — one of the most extensively used wild ingredients in Czech folk food traditions. Flower clusters are harvested when fully open but before pollen shed, typically morning. They are used in syrup, cordial, and fritter batter. The leaves, bark, and unripe berries of elder are toxic and must not be consumed.
St George's mushroom (Calocybe gambosa) appears in May, traditionally around St George's Day (April 24) though actual emergence depends on soil temperature reaching 10°C. It grows in rings in grassland, woodland edges, and hedgerow margins. The cap is cream to pale buff, the flesh firm and white, the smell floury and distinctive. It has been confused with the toxic Inocybe and Clitocybe species — both of which have a more irregular cap and a different smell.
June and July — Chanterelles Begin
After sufficient rain following the first summer heat, chanterelles (Cantharellus cibarius) emerge in mixed and conifer forests from mid-June onward. This is the species most broadly associated with Czech mushroom foraging. The cap is egg-yolk yellow, the false gills (ridges, not true gills) run down the stem, and the smell is faintly fruity — compared variously to apricot or peach.
The primary lookalike concern is the false chanterelle (Hygrophoropsis aurantiaca) — orange rather than yellow, with true gills (thin and crowded rather than forked and blunt), and a more regular, deeply inrolled cap margin. The false chanterelle causes gastrointestinal symptoms and has been occasionally confused with chanterelles even by experienced foragers when specimens are fresh and brightly coloured.
June and July also bring bilberries (Vaccinium myrtillus) to upland heathland and open forest floor in Šumava, Krkonoše, Jeseníky, and the Bohemian Forest. Ripe mid-July to late August depending on altitude. The flesh is deep blue-red throughout — a useful distinction from cultivated blueberries.
August and September — Main Mushroom Season
The bulk of Czech mushroom foraging occurs in August and September, when porcini (Boletus edulis), bay bolete (Imleria badia), and various Russula and Lactarius species are at peak. This is also when Amanita phalloides — the death cap — is most prolific and when the majority of poisoning incidents occur.
Rosehips (Rosa canina) are harvested from August through October after the first frost softens them. Sloe berries (Prunus spinosa) from hedgerows in September–October. Hawthorn berries from October. All three are high in vitamin C and used widely in Czech household preserves.
October and November — Late Season
Oyster mushrooms (Pleurotus ostreatus) appear on dead broadleaf timber from October through the first hard frost — and again in mild spells through winter. They grow in fan-shaped clusters on stumps and fallen logs, are grey to blue-grey when young, and have no dangerous lookalike in a Czech context. The horn of plenty (Craterellus cornucopioides) also appears in late October, particularly in beech forests in the Moravian highlands.
By November, the foraging season is largely over at lower elevations. In mild autumns, a few chanterelles persist into early November in sheltered spots, and hedgehog mushrooms (Hydnum repandum) are sometimes found through the month. Persistent rain and temperatures above 5°C are the reliable predictors for late-season fungi.
A Note on Year-to-Year Variation
The Czech Hydrometeorological Institute (ČHMÚ) records significant seasonal variance — a 2°C warmer March can shift the ramsons harvest forward by 10–14 days; a dry July may delay chanterelle emergence by three weeks. The Czech Mycological Society publishes seasonal reports on its website that reflect actual conditions each year, which are more reliable than fixed-date calendars.