Updated 29 July 2026
When is the best time to find Slippery jack in County Cork?
This week’s slippery jack forecast for County Cork, Ireland reads 13% and just starting. The 14-day outlook decides whether to go now or wait, so check https://shroomcast.net/forecast/slippery-jack-forecast-for-county-cork-ireland/ before you set out
It is outside the usual season for Slippery jack, so expect only scattered finds.
It has a distinct membranous ring or partial veil remnant on the stem, an unusual feature among the slippery-capped Suillus boletes.
A decent edible with a mild flavour, good in mixed dishes, soups and sauces rather than as the star. Always peel off the slimy cap skin, which can otherwise cause loose stools, and discard the spongy pore layer on older specimens.
Other Suillus boletes such as the larch bolete (Suillus grevillei) and weeping bolete, all of which are also edible, so there are no dangerous poisonous lookalikes. The slimy brown cap, yellow pores and ringed stem set it apart from any toxic gilled mushroom.
County Cork is Ireland’s largest county, ranging from a deeply indented Atlantic coastline of long peninsulas like Beara, Sheep’s Head and Mizen Head to the rolling farmland of its fertile river valleys. Inland it rises into sandstone uplands such as the Shehy and Caha Mountains, with Knockboy the highest point at 706 m. Mixed deciduous woodland of oak, ash, birch and hazel survives in sheltered valleys and demesnes, alongside extensive Sitka spruce and pine plantations like those at Gougane Barra forest park. Damp leaf litter under broadleaves, mossy stream banks and the edges of conifer stands are the most productive ground for fungi.
Cork has a mild, humid oceanic climate softened by the Atlantic, with cool summers, frost-free coasts and heavy rainfall spread through much of the year. This near-constant moisture keeps woodland floors damp and gives a long autumn fruiting season. Expect a generous mushroom season from late summer well into November, with chanterelles and ceps in the older oak woods and waxcaps studding the unimproved coastal grasslands. Much of the land is farmed or fenced, so stick to forest parks, public woodland and recognised access points and always ask permission on private ground.
FAQ
How do I know slippery jack season has started in County Cork, Ireland?
Season usually kicks off after a warm spell followed by steady rain, with the first flushes appearing somewhere in the August to November window. The clearest sign is the live forecast lifting off zero into ‘just starting’ or ‘building’. For County Cork, Ireland it currently sits at 13% and is just starting.
Are slippery jack out near me right now in County Cork, Ireland?
Today the slippery jack forecast for County Cork, Ireland is 13% and conditions are just starting. That is a live read for the region this July, and it shifts with the weather rather than following a fixed calendar. It tells you if it is worth heading out in County Cork, Ireland right now.
What should I look for this week for slippery jack in County Cork, Ireland?
This week in County Cork, Ireland the forecast is 13% and just starting. Grows in conifer woods, almost always with pine, on sandy or poor soil and often along forest tracks and clearings. Common in young plantations and appears in groups. The 14-day outlook on the page shows whether conditions are climbing toward a flush or easing off, so you can pick your day.
Is it mushroom season in County Cork, Ireland right now?
For slippery jack in County Cork, Ireland, the typical season is August to November, and today the live forecast reads 13% with conditions just starting this July. So yes or no depends on the day and the weather, which is exactly what the forecast tracks.
Does ShroomCast tell me if a mushroom is safe to eat or identify it for me?
No. ShroomCast only forecasts timing, so it tells you when slippery jack are likely to be fruiting in County Cork, Ireland. It does not identify mushrooms, and it cannot tell you whether anything you pick is safe to eat. Always confirm your own identification from a reliable source before eating anything.
See the live regional forecast in the ShroomCast app.
This page shows today. The app gives you the full 14-day outlook for your area and all 14 species, so you can pick the right day before you drive out.
Scale: 0-20% very low · 20-40% low · 40-60% moderate · 60-80% high · 80-100% excellent. ShroomCast forecasts fruiting probability from weather, soil, forests and years of observations – a guide, not a guarantee of finds.