Horizon Mushroom Grow Bags

These Unicorn Horizon Bags feature gusseted sides and an extra-wide filter that measures 2.0-inch x 6.0-inch. The extra-wide Horizon filter is twice as wide as the standard Unicorn filters and can create more than 30% fruiting yield, as compared to the standard filters. Horizon bags are identical to our standard USA-made Unicorn bags, except the filter size is 2-inch x 6-inch (rather than 2-inch x 3-inch) and the filter is 1-inch higher on the bag. The extra-wide Horizon filter offers twice as much gas exchange as the standard filter, making Horizon bags ideal for growing mushrooms inside of.