North Spore ‘Boomr Bag’ Manure-Based Sterile Mushroom Bulk Substrate - Pallet of 336 rock-bottom Pyrethrins are made from Pyrethrum

Pyrethrins are made from Pyrethrum

For maximum effectiveness and safety

so your feet are more cool and comfortable even as you sweat

Apply when weeds are actively growing

and it features independent CO2

North Spore ‘Boomr Bag’ Manure-Based Sterile Mushroom Bulk Substrate - Pallet of 336 rock-bottom Pyrethrins are made from PyrethrumBest selling Boomr Bag is a sterile bulk mushroom substrate formulated by mycologists to increase the yield of your grow. It features a proprietary blend of composted horse manure, coco coir, and several quality substrate supplements (although we keep the exact blend a secret!) Over several years, it has been perfected for dung loving mushroom species and is widely trusted by mushroom growers. Note: Substrate is hydrated to field capacity. Use your