Grow guide
How to grow shiitake mushrooms at home
Shiitake grow on hardwood — either a colonized sawdust block or inoculated logs. From a block: keep it humid at 60–70°F and shiitake pin and fruit in about one to two weeks; a quick cold-water soak between flushes triggers the next one. Logs take months to colonize but then fruit for years.
What you need
- A colonized shiitake block (or inoculated hardwood log)
- A spray bottle of clean water
- A cool, humid spot at 60–70°F
Step by step
- 01Unwrap and placeSet the colonized block somewhere humid and out of direct sun. Shiitake like it a little cooler than oysters — 60–70°F is ideal.
- 02Keep it humidMist a few times a day, or tent it loosely to hold humidity. Brown, leathery skin on the block is normal for shiitake.
- 03Trigger fruitingShiitake respond to a shock: a 12–24 hour soak in cold water, or a big humidity/temperature swing, kicks off pinning. Small brown caps follow within days.
- 04HarvestPick when the caps are still slightly curled under, before they flatten. Cut at the base.
- 05Rest and re-soakLet the block rest a couple of weeks, soak it again, and it will flush several more times.
Common questions
Are shiitake harder to grow than oyster mushrooms?
A little. Shiitake are slower and like a cold-water soak to trigger fruiting, while oysters are the most forgiving beginner mushroom. If it's your first time, start with oyster or lion's mane.
Do you sell shiitake kits in Portland?
Our current kits are blue oyster and lion's mane. Come to a live inoculation session or ask at the cafe — we can point you to shiitake spawn and logs.
Want to do it in person? We'll walk you through every step at the flow hood and you'll take home a block you inoculated yourself.