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MyCo Planet

Black Pearl Grow Kit

Black Pearl Grow Kit

Regular price $35.00 USD
Regular price Sale price $35.00 USD
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Our black pearl oyster mushroom grow kit is one of our best sellers and for good reason. Black Pearl oyster mushrooms are an amazing cross-blend of two mushroom species. A hybrid from Japan, the Black Pearl mushrooms combine the best characteristics of the King Oyster and the Grey Oyster. Black Pearl Oyster mushrooms have large meaty stalks like the King Oyster that can be cut up like scallops. The flesh is tender and goes great with stir fry dishes. Some studies show that these mushrooms can provide anti-inflammatory and anti-tumor properties and have high levels of antioxidants. Read more about the health benefits of Oyster mushrooms.

The Black Pearl Oyster Mushroom Grow Kit from MyCoPlanetKC is the easiest way to begin cultivating your own mushrooms. This kit has all that you need to get started, including a block of a fully colonized substrate and everything else you need to harvest your first mushroom crop. Our black pearl oyster mushroom grow kit is intended for commercial growers (10 lbs), bigger than other grow kits that are offered.

With our Black Pearl Oyster Mushroom grow kit, you can experience the joys of growing your own mushrooms as we do. After 14 days, you’ll be able to harvest fresh, nutritious oyster mushrooms from the comfort of your own home. It’s an amazing feeling to watch your mushrooms grow day by day and that first harvest is a joyous experience.

Buy The Black Pearl Oyster Grow Kit

Start growing your own mushrooms today with the Black Pearl Oyster Mushroom grow kit from MyCoPlanetKC. This convenient kit contains all the essential components for cultivating juicy, nutritious oyster mushrooms in the convenience of your own home.

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  1. When receiving the MyCo Planet Black Pearl Grow Kit, remove it from the box and place it on a table or counter out of direct sunlight.
  2. Make an “X” shaped cut across the front of the bag, about 6-inches in length for each cut. Make sure that the top of the bag remains folder over, pressing down and removing excess air.
  3. Using the included spray bottle, spray the opening of the bag 1-2 times a day as needed, keeping up the humidity so the mushrooms can grow.
  4. You will be able to harvest within 7-14 days. To harvest, grab the mushrooms by the base, and twist to remove.
  5.  To achieve a second harvest, let your block rest a couple days, then resume watering 1-2 times a day.
  6. Once your block is spent, you can spread the block in your garden as fertilizer.

For a visual guide, visit our MyCo Planet Mushroom Grow Kit page.

Here is our easy-to-follow fruiting video from our YouTube channel.


Oyster Mushroom Grow Kit Substrate

This complete Oyster mushroom grow kit includes the following substrate:

Master’s Mix, which consists of 50% red oak sawdust and 50% soybean hulls, locally sourced from agriculture and milling waste material that is organically certified. The spawn used to inoculate the Master’s Mix was grown on organically certified millet.

In the Kit

This complete black pearl oyster grow kit includes:

  • Unicorn inoculation bag, which can be recycled after use.
  • Small spray bottle, which is required to keep the substrate moist.
  • Easy-to-follow instructions


Mushroom grow kits can be surprisingly resilient. While we recommend fruiting your grow kit as soon as possible, if you need to, you can store your grow kit in the refrigerator for up to 6 months! If you start to see “pinning”, it means that your mushrooms are ready to fruit and you probably should not store them any longer.


It is critical to be aware of any potential allergies before growing mushrooms, as some types of mushrooms can cause severe allergic reactions in certain individuals. Moreover, mushroom spores may contain various biological contaminants such as bacteria, viruses, and fungi that could potentially make susceptible people ill.