How to Grow Hydroponic Mushrooms For Year-Round Harvesting

One of the easiest ways to grow your own mushrooms is by using a hydroponic setup. The process can be difficult for beginners, but with practice, it becomes much easier. I have included some tips below that will help you get started on this rewarding hobby of growing hydroponic mushrooms!

“Nature does not hurry, yet everything is accomplished.” ~Philosopher Lao Tzu

Growing Hydroponic Mushrooms

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Hydroponically grown mushrooms are grown in nutrient-enriched water solution instead of soil and are of superior quality. Here are few helpful tips on how you can easily grow hydroponic mushrooms in your own hydroponic garden.

Choose your mushroom variety

Here are just a few types of mushrooms you can grow hydroponically:

• nameko
• shiitake
• oyster
• lion’s mane
• button
• maitake
• cinnamon cap
• enokitake

Prepare your growing medium

The simplest approach to growing hydroponic mushrooms is to start with a mushroom growing kit. These kits typically consist of a compact, square block of compressed sawdust, usually around 12 inches in size. This block is pre-inoculated with mushroom spores or mycelium.

Of course, if you prefer a hands-on approach, you can create your own sawdust or seed block. You can also use straw, wood chips, or even spent coffee grounds.

Inoculate

If you buy a mushroom kit, skip this step. But if you create your own medium, you need to inoculate the growing medium with mushroom spores or mycelium (the vegetative part of fungi).

Soak the medium

Start by soaking the sawdust block in cold, non-chlorinated water for several hours. After soaking, place the block in a dark, humid environment with temperatures between 60°F and 75°F.

Incubation

Allow the inoculated medium to incubate in a dark, humid environment. It typically takes between 2 and 4 weeks for the mycelium to fully colonize the medium.

Fruiting

After incubation, initiate fruiting by exposing the colonized block to fresh air and maintaining high humidity.

A good airflow will encourage mushroom formation, while keeping the surface moist and the right temperature (check on the specific species you are growing for proper temperature)

Harvest

Harvested when the mushrooms reach the size you want. For most varieties, harvest just before the caps fully open: gently twist and pull the mushrooms off the block to avoid damaging the mycelium.

Repeat harvests

Post-harvest care can lead to multiple flushes of mushrooms. After your first harvest of mushrooms, let your sawdust block rest for a week and then reuse it for another mushroom planting cycle. Just be aware that with each new cycle, the size and number of mushrooms might reduce as the amount of nutrients decreases. When the sawdust block is fully used and is of no use, you can add it to a garden compost pile.

Fresh air

If your garden is in a closed-off bedroom or small grow room, keep the door open and the window cracked. Since plants deplete the CO2 (carbon dioxide) in the room, you need to provide fresh air. A cheap oscillating fan that stays on 24/7 will do the job perfectly.

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