---
product_id: 431090371
title: "Black Pearl King Oyster Mushroom Grain Spawn - 1 lb. Ready to Use - Grow Your Own Gourmet or Medicinal Mushrooms at Home or Commercially - for G2G Transfer or Pasteurized Straw Inoculation"
brand: "liquid fungi"
price: "$U2708"
currency: UYU
in_stock: true
reviews_count: 1
category: "Liquid Fungi"
url: https://www.desertcart.uy/products/431090371-black-pearl-king-oyster-mushroom-grain-spawn-1-lb-ready
store_origin: UY
region: Uruguay
---

# fast 12-day colonization 100% organic rye grain spawn fridge storage up to 6 months Black Pearl King Oyster Mushroom Grain Spawn - 1 lb. Ready to Use - Grow Your Own Gourmet or Medicinal Mushrooms at Home or Commercially - for G2G Transfer or Pasteurized Straw Inoculation

**Brand:** liquid fungi
**Price:** $U2708
**Availability:** ✅ In Stock

## Summary

> 🍄 Unlock gourmet mushroom mastery with Black Pearl King Oyster – grow like a pro, harvest like a boss!

## Quick Answers

- **What is this?** Black Pearl King Oyster Mushroom Grain Spawn - 1 lb. Ready to Use - Grow Your Own Gourmet or Medicinal Mushrooms at Home or Commercially - for G2G Transfer or Pasteurized Straw Inoculation by liquid fungi
- **How much does it cost?** $U2708 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/431090371-black-pearl-king-oyster-mushroom-grain-spawn-1-lb-ready)

## Best For

- liquid fungi enthusiasts

## Why This Product

- Trusted liquid fungi brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Long Shelf Life:** Store refrigerated up to 6 months without losing potency—grow on your schedule.
- • **Rapid Growth Cycle:** From inoculation to fruiting in just 22 days—fast-track your gourmet mushroom game.
- • **High-Yield Commercial Strain:** Optimized for medium to large scale growers craving dense, meaty harvests.
- • **Ready-to-Use Colonized Spawn:** Skip the wait—arrives fully grown and contamination-free for instant inoculation.
- • **Versatile Substrate Compatibility:** Works seamlessly with rye berries, straw, hardwood sawdust, and master mixes.

## Overview

The Black Pearl King Oyster Mushroom Grain Spawn is a premium, fully colonized organic rye grain spawn designed for both home and commercial growers. This hybrid oyster mushroom strain offers rapid colonization in 12 days and fruits dense, flavorful mushrooms within 10 days. Compatible with multiple substrates and boasting a 6-month refrigerated shelf life, it’s the go-to choice for efficient, high-yield mushroom cultivation.

## Description

BLACK PEARL KING OYSTER MUSHROOM GRAIN SPAWN - Our Black Pearl King Oyster grain spawn is grown on 100% certified organic rye berries. It arrives contaminate free, fully developed, and ready to use. Black Pearl King Oyster Grain spawn is used to inoculate many bags of bulk substrate quickly, and is the choice methodology for medium and large scale growers. Simply break up the grain spawn well, then transfer some grains to each bag you want to inoculate. BLACK PEARL KING OYSTER MUSHROOM - The Black Pearl Oyster or Black Pearl King Oyster is a oyster mushroom (Pleurotus ostreatus) hybrid from Japan. It is the result of a cross between a European and an Asian Pleurotus ostreatus. It grows and looks much like Pleurotus eryngii (King Oyster) in the beginning as it matures it will look more like a Pleurotus ostreatus (Pearl Oyster). Black Pearl Kings are less finicky than Pleurotus eryngii, and are able to grow very well indoors. Grows on the same substrates as pearl or king oysters such as masters mix or hardwood sawdust (HWFP). It is a fast substrate colonizer that fruits dense, meaty mushrooms. ENVIRONMENT INFORMATION - Names: Black Pearl King Oyster, Black Pearl Oyster Classification: Pleurotus ostreatus Substrates: Rye Berries, Supplemented Sawdust, Straw Incubation Time: 12 Days Fruiting Temp: 60-75° F Fruiting Humidity: 90%-93% Fruiting Time: 10 Days

Review: Excellent spawn - I would always fail at growing Black Pearl Oyster Mushrooms myself. I saw this one and had to buy it. Arrived fully colonized and ready to be used. No mold and other contamination. I was able to use this in different substrates. I would buy this again.

## Features

- arrives fully colonized and ready to use
- commercial high-yield strain
- store in fridge up to 6 months

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B09WJ1D3NG |
| Best Sellers Rank | #219,037 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #5,475 in Vegetable Plants & Seeds |
| Customer Reviews | 4.5 4.5 out of 5 stars (4) |
| Manufacturer  | Liquid Fungi |
| Package Dimensions  | 9 x 6 x 6 inches; 1 Pounds |
| UPC  | 310003801604 |
| Units  | 16.0 Ounce |

## Product Details

- **Brand:** Liquid Fungi
- **Item Weight:** 1 Pounds
- **Number of Items:** 1
- **Produce sold as:** Bunch
- **Unit Count:** 16.0 Ounce

## Images

![Black Pearl King Oyster Mushroom Grain Spawn - 1 lb. Ready to Use - Grow Your Own Gourmet or Medicinal Mushrooms at Home or Commercially - for G2G Transfer or Pasteurized Straw Inoculation - Image 1](https://m.media-amazon.com/images/I/61nictAwNaL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent spawn
*by K***H on December 11, 2025*

I would always fail at growing Black Pearl Oyster Mushrooms myself. I saw this one and had to buy it. Arrived fully colonized and ready to be used. No mold and other contamination. I was able to use this in different substrates. I would buy this again.

## Frequently Bought Together

- Black Pearl King Oyster Mushroom Grain Spawn - 1 lb. Ready to Use - Grow Your Own Gourmet or Medicinal Mushrooms at Home or Commercially - for G2G Transfer or Pasteurized Straw Inoculation
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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-03-10*