And a cluster popped out on the side too!
Just like on a fruit tree not all little fruits will ripen, the mushroom will decide to abandon some clusters and concentrate energy on other clusters.
Eventually, those on the top took over in this batch.
As soon as you see very dense white areas with little budding mushrooms, usually in about 2 to 4 weeks from the start, it’s time to move the container into a growing environment.
The keys are fresh air, bright light (enough to read in is good, which makes it possible to grow them indoors easily!) but no direct sun, and humidity in the air. Just like how it is after a rain in the forest, where we would see mushrooms coming up.
A clear large plastic trash bag with 10-20 small holes all around, propped over the container can be a simple and effective humidity tent for the mushrooms to mature.
If you are crazy in love with growing mushrooms, like I am, you can make a mushroom terrarium which works great indoors and out: drill 1/4″ holes on all sides and lid of alarge clear plastic storage bin, cover with the lid or drape a sheet of clear plastic if the bin is standing on the side like in the case.
Either way, mist the inside of the humidity tent with water 2 times a day in a dry environment, so there are water droplets visible most of the time. Placing some trays of moist Horticultural Perlite can reduce the need for daily misting since it will add moisture in the air.
Mushrooms can also be fruited under the shade of a tree, or in a greenhouse.
Did you see in the video how fast these mushrooms grow? That was over a 4 day period! In 3-5 days mushrooms can grow from 1/2″ tall to over 6″ tall! And yes they were delicious!
After a harvest, put the container in the dark room again to rest for 1-2 weeks, then move it to the fruiting environment for another flush of mushrooms. This process can be repeated 3 times. Some say 5 times! By the time I am publishing this, a second flush already started. Wow!
The spent growing medium can also be broken up and used outdoors in a garden for a chance of more mushrooms! Elm Oyster and cabbage family plants have a beneficial relationship. I will update you on this in future! ( Elm Oyster mushroom is actually a different species from Oyster mushroom, although tastes and looks similar. Both works great with this coffee grounds method. )
But our mushroom adventure does not end here!
Save the mushroom stem base with some white mycelium still attached, add them to some pre-soaked cardboard in a bag or container. Keep layering as you harvest more mushrooms. With a little patience, practice and good luck, you can grow your own mushroom spawn in a low-tech way.
In his inspirational book Mycelium Running – How Mushrooms Can Help Save the World, Paul Stamets gives lots of details on growing mushroom spawn from mushrooms in simple ways.
I am just starting to experimenting with this, looking good so far! I will give an update in a few months and add a link here.
Helpful Tips and resources on how to grow mushrooms at home:
- A big thank-you to James Wieser whose video inspired me to try this method!
- My favorite book on how to grow mushrooms for the home / hobby grower is Mycelium Running – How Mushrooms Can Help Save the World by Paul Stamets. His passion and knowledge is contagious! He shares lots of fun and low tech ways to growing many kinds of gourmet mushrooms which I just can’t wait to try!
- ready to grow mushroom “kits” are actually spawn with growing medium already gone through the work we did here, and ready to fruit. By starting with spawn (although it might be called “kits”), we get lots more mushrooms and more fun in the learning process!
- if you see contamination such as black or green mold, remove the moldy spots, and spray the area with hydrogen peroxide, which comes as 3%, diluted with 10 times water, which will be 0.3%.
Want more growing ideas?
Happy growing! =)