Cold Blue Oyster MycoGarden Fruiting Kit - (Pleurotus ostreatus)

Grow Mushrooms. Grow Soil. Grow Life.

Plant it. Water it. Watch it grow.

The Cold Blue Oyster MycoGarden Fruiting Kit lets you grow mushrooms even when the rest of your garden slows down. Just bury the block, water it well, and within a few short weeks, you’ll see clusters of stunning blue-gray oyster mushrooms bursting from the soil—sometimes even in near-freezing temperatures!

The Cold Blue Oyster - (Pleurotus ostreatus) is one of our most beautiful winter mushrooms and commercial fruiting strain with an extremely low fruiting temperature window. Meaty and sweet, this mushroom is also known for its antiviral properties, so it is a great mushroom to eat and toss into a soup during the colder months. Optimum fruiting occurs when temperatures fall in between 35-50F, which means a cold shock down to a near freeze is needed to produce after a flush has rested. The colder the temperature the deeper blue the caps are!

Hardy and reliable, this cold-tolerant strain thrives when the air is crisp and the soil is moist. Beneath the surface, its mycelium quietly regenerates your garden—breaking down organic matter, inviting worms, and enriching the soil for spring.

The mushroom that thrives when others rest — nature’s winter gardener.

🌱 Why You’ll Love It

• Cold-Weather Fruiting: Produces mushrooms even in chilly, near-freezing conditions.
  
  
• Fast Results: Fruits within 2–4 weeks of planting.
  
  
• Effortless Cultivation: Simply bury, water, and watch it grow.
  
  
• Soil Enrichment: Mycelium builds structure, fertility, and moisture retention.
  
  
• Reliable Performer: Excellent for fall through winter gardens.
  
  

🍄 How to Plant

1. Dig a hole 6–8 inches deep in a shady or semi-shady area.
   
   
2. Place your Cold Blue Oyster block in the soil and cover lightly with soil and straw or leaves.
   
   
3. Water thoroughly and maintain moisture, especially in dry winter spells.
   
   
4. Watch mushrooms fruit in weeks, then continue to enjoy multiple flushes through the cold season.
   
   

🌤️ Best Planting Season

Fall through Winter

🪴 Ideal Locations

Garden beds, raised beds, greenhouse edges, or cold frames