start to finish

how long do mushrooms take to grow from spore to fungus? literally day 1 to the last day...

is it hard to grow them?

That depends on substrate, strain, and environment.

For your first time, using the PF Tek, assuming you do everything right and provide them at least an adequate environment, you should expect at least 20 days incubation (at room temp). For your first time, let them go until they pin invitro, dunk for 24hrs, roll/double end case. Then at least two weeks fruiting and another couple days to dry.

Your first time, it will probably be a little under a month and a half from the time you nocc up your jars, till the time you can ingest the first fruit.

Then once you get it once toss out your half pint jars and go search 'monotub' on the shroomery

...so they are kind of hard to grow?

Anyone with half a brain can do it.

It takes patience though, and the will power not to cut corners.

Spend a month reading at the shroomery, then pick up all the supplies, then set up and calibrate your fruiting chamber, then order your spores.