Found about 10 yellows around the Boonesborough area today. This is my second year finding them and I was wondering how long I should watch them before picking them. Most were about the size of my thumb with a few a little bit bigger.
Are they headed for being the "big yellows" or the greys?
You should let them get big enough to drop some spores before picking them. That helps ensure some new hyphae and thus preserve your patch.Once they have dropped some spores, the rest is just a matter of choice.
If they are greys (darker pits, lighter ridges), they turn brown (rusty-looking) on top when they get wet. The color does not hurt them. If they are blacks (the ridges are black, pits are lighter) then you should wait till they are dark on top. Either way, they sound like they are ready to pick. You want to get them before the snails do!
There have been many studies done about how much a morel grows over time-- I think it averages around 1/4" a day or something like that. Of course, it depends on temperature and rainfall.
By the way, the greys can vary a lot in color. Some mycologists claim the greys and the yellows are the same and the larger yellows are just mature smaller yellows. Other mycologists argue they are different species.
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