Updated 22 September 2026
Slippery Jack in Vestland, Norway: live forecast and 14-day outlook
The best time for slippery jack in Norway is August to November, with the peak normally in the middle of that range. Today they’re at 54% and looking good in Vestland
It fruits after warm late-summer and autumn rain, typically when day temperatures sit around 10 to 20C and the ground stays damp. A good soaking followed by mild nights usually brings flushes within a week or two.
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.
Strictly associated with pines, so look in conifer plantations and natural pine woods, often on sandy or poor acidic soil. It favours forest edges, paths, grassy verges and young plantations rather than deep shade.
Scan the ground near any pine, especially along sandy tracks and clearings where they often appear in groups. Pick young firm caps, since older ones go soft and waterlogged, and carry them separately because the slimy cap coats everything.
Use fresh within a day or two as the slime makes it perish quickly; peel and clean before chilling. It dries well once peeled and de-pored, and the dried slices or powder keep for months in an airtight jar; it can also be cooked and then frozen.
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.
FAQ
What should I look for this week for slippery jack in Vestland, Norway?
This week in Vestland, Norway the forecast is 54% and looking good. 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 Vestland, Norway right now?
For slippery jack in Vestland, Norway, the typical season is August to November, and today the live forecast reads 54% with conditions looking good this September. 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 Vestland, Norway. 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 Vestland, Norway work?
We take the usual slippery jack season for Vestland, Norway (August to November) and weigh it against the weather right now and over the last few days. That gives you one live number, today 54% and looking good, plus a 14-day outlook and a normal-year line to compare against.
When is slippery jack season in Vestland, Norway?
In Vestland, Norway, slippery jack season usually runs August to November. The exact start shifts year to year with rain and temperature, so some years they show up early and some years late. Right now (September) the live forecast for Vestland, Norway reads 54% and conditions are looking good.
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.
ShroomCast forecasts the region and the time of year. It cannot identify mushrooms for you, so confirm any species with a reliable source before eating it.