Last fall, I ended up ordering another package of spawn and adding it to my bed. A few mushrooms did pop up, but I didn't see a huge amount of mycelium when I dug into the chips, so I figured I'd give the bed a
boost. I used half the package and gave the rest to my mum. Her bed is more leaves than wood chips and she gets lots of mushrooms, starting with a big flush this spring.
I got maybe five or six mushrooms in the spring and then a random one now and then over the summer. If I hadn't been keeping an eye on it I never would have noticed. The bed is pretty well colonized now, and I'm hoping when we get some rain this fall I'll get a good flush.
My point is, it's been two years and I haven't really gotten any mushrooms, so for other people who think their beds failed, you might want to just give it some more time.
I got my shit together at a reason time this year, ordered more spawn, and it came a few weeks ago. This year, I spent a lot of time knocking down saplings under the powerlines (we try to keep on top of it ourselves, rather than have the company send brushers through) and made looots of woodchips. I did a 4x25ish foot bed of them, about two feet deep. Every few feet I put a mound of soil where I'll plant squash and heaped the chips up around it. The chips around the soil mounds are where I put the spawn, layering it in as I piled the chips on. I didn't have
enough spawn to do linking pathways between concentrated areas, the way Eric Hanson does, which would have been nice.
I lucked out on the weather and we had a downpour a day or so after I put the spawn down, so I haven't even had to water. I just dug into a couple spots to make sure it's still moist, and the mycelium is taking over already. The woodchips were so fresh and green I was worried about the spawn getting too hot, but I think the heat has been speeding things along.
Not expecting mushrooms from this bed any time soon, since they have so much food, but very glad to see all that mycelium. I'll be spreading it all over the property soon.