Updated 28 July 2026
Slippery jack in Perth and Kinross, Scotland: live forecast and 14-day outlook
This week’s slippery jack forecast for Perth and Kinross, Scotland reads 19% and building. The 14-day outlook decides whether to go now or wait, so check https://shroomcast.net/forecast/slippery-jack-forecast-for-perth-and-kinross-scotland/ before you set out
It is outside the usual season for Slippery jack, so expect only scattered finds.
In the same pine woods and season look for other Suillus such as larch bolete and weeping bolete, plus saffron milkcaps and the occasional bay bolete or porcini on richer patches. False chanterelles and various brittlegills often share the same acidic ground.
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.
Perth and Kinross is split by the Highland Boundary Fault: rugged Grampian uplands of peaks like Ben Lawers and Schiehallion in the north-west give way to gentler lowland straths in the south-east. Glaciated valleys cradle ribbon lochs such as Loch Tay, Rannoch and Tummel, while the fertile vale of Strathmore and the Carse of Gowrie run between the Ochil and Sidlaw hills. Known as Big Tree Country, the region holds some of Britain’s grandest woodlands, from remnant Caledonian Scots pine around Rannoch to towering Douglas firs and larch in Tay Forest Park. Mixed stands of oak, birch, hazel and rowan along the Tay and Tummel, together with riverside and upland conifer plantations, give a wide spread of fungal habitats.
The climate is cool and damp with a strong Atlantic influence, the hills of the west catching far more rain than the drier eastern straths. Mild, wet autumns following the highland downpours keep the woodland floor reliably moist for fungi. Foragers can work an unusually varied landscape, from native pinewood and birch on the moorland edge to rich mixed valley woods and lowland farmland fringes. The mix of acidic uplands and fertile straths supports a long, productive autumn season for the patient walker.
FAQ
Are slippery jack out near me right now in Perth and Kinross, Scotland?
Today the slippery jack forecast for Perth and Kinross, Scotland is 19% and conditions are building. 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 Perth and Kinross, Scotland right now.
What should I look for this week for slippery jack in Perth and Kinross, Scotland?
This week in Perth and Kinross, Scotland the forecast is 19% and building. 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 Perth and Kinross, Scotland right now?
For slippery jack in Perth and Kinross, Scotland, the typical season is August to November, and today the live forecast reads 19% with conditions building 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 Perth and Kinross, Scotland. 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.
How does the live slippery jack forecast for Perth and Kinross, Scotland work?
We take the usual slippery jack season for Perth and Kinross, Scotland (August to November) and weigh it against the weather right now and over the last few days. That gives you one live number, today 19% and building, plus a 14-day outlook and a normal-year line to compare against.
See the live regional forecast in the ShroomCast app.
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.