50/50 Mushroom Substrate 1 lb Bag - Straw & Manure Blend for High Yields - Pasteurized & Ready to Use (Out-Grow)

Give your mushrooms the perfect growing environment with Out-Grow’s 50/50 Straw and Manure Mushroom Substrate. This nutrient-rich, airy blend combines 50% aged horse manure-based compost with 50% finely chopped golden wheat straw, providing an ideal balance of structure, moisture retention, and essential nutrients for dung-loving mushroom species. Each purchase includes a 1 lb bag—perfect for small-scale grows or testing new strains.

• ? Includes 1 x 1-pound bag – Perfect for small-scale grows or testing new strains.
• ? Pasteurized & Ready to Use – No additional preparation needed—just add your gourmet mushroom spawn.
• ? Optimized for High Yields – Provides superior results compared to grain-only substrates or all-in-one grow bags.
• ? Premium Ingredients – Made with field-aged horse manure, golden wheat straw, coconut coir, vermiculite, and other natural soil conditioners for improved aeration and water retention.
• ? Versatile Growing Options – Use directly in the mushroom grow bag or transfer to monotubs, trays, or bulk fruiting chambers.

Common Name: 50/50 Straw & Manure Mushroom Substrate
Scientific Name: N/A
Sunlight: Indirect light
Watering: Maintain moisture without saturation
Soil: Aged horse manure-based compost & wheat straw
Hardiness Zones: N/A
Growth Habit: Supports rapid mycelium colonization
Format: 1 lb bag