5lb Heavy Harvest Grow Bag - Grain + Substrate Only

Max Yield, Minimal Hassle.
Our 5lb Pre-Sterilized Grow Bags are built for growers who want to run bigger, cleaner, and more efficiently. Filled with premium sterilized grain or substrate and ready to inoculate out of the box, these bags give you more room for aggressive colonization and more consistent results.

While yield depends on genetics and conditions, a larger bag means more colonized substrate — and more substrate typically means more fruiting potential. These bags are ideal for bulk grows, advanced cultivators, or anyone looking to scale up their operation.

Why It Hits Different:

• 5lb capacity = more substrate, less hassle

• Fully sterilized and sealed with injection port

• Compatible with liquid culture or spore syringes

• Designed for strong, fast colonization

Run larger. Grow cleaner. Level up.