how long can the substrate last in the bag?

Not long mine was green when it arrived.

Do I just need this kit and a spore syringe to grow or would I need something different or additional?

You would want something like rye berries or straw depending on the mushroom. To inoculate with a spore syringe to colonize then mix in this substrate but if you have myceilium already colonized you would just mix it into this substrate. You wouldn't want to just inject this with spores, from my understanding.

How long will this product last before use when stored properly? And what would be recommended storage if possible?

The sooner you use it, the better. Because it's a sterilized substrate, it will probably be fine for 6 months to a year. I'd keep it in a cool dry place. This is a good option and I've been pleased with the product.

Where do I acquire a rye, vermiculite, pearlite substrate? Thanks

amazon, home depot, hydroponic store...... but if you are planning to add it to this substrate you would need to sterilize it. This bag is made to be used without adding anything to it

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Boomr Bag Sterile Mushroom Substrate, Manure-Based, 5 lb

Product ID: 148907055

Details

Brand
North Spore
Global Trade Identification Number
Item Weight
5 pounds
Style
Sterile
UPC
851555008931

🌱5 lb sterile manure-based substrate

📈Optimized for max mushroom yield

🛡️Mycologist-formulated & trusted

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Description

🍄 Elevate your grow game with Boomr Bag – where science meets bountiful harvests!

BOOST YOUR HARVEST - Sterile, manure-rich substrate engineered to maximize mushroom fruiting and size.
TRUSTED BY EXPERTS - Years of refinement and 1,200+ 4.2-star reviews prove its reliability and performance.
PERFECT SPAWN RATIO - Recommended 1:2-3 spawn to substrate ratio for consistent, high-yield results.
PROPRIETARY PREMIUM BLEND - Unique composted horse manure and coco coir mix, perfected for dung-loving species.
VERSATILE GROWING OPTIONS - Ideal for monotubs, filter bags, outdoor beds, or direct bag/tray cultivation.

North Spore's Boomr Bag is a 5 lb sterile, manure-based bulk substrate designed by mycologists to significantly increase mushroom yields. Featuring a secret proprietary blend of composted horse manure and coco coir, it supports dung-loving mushroom species and is trusted by growers worldwide. Suitable for various cultivation methods, it offers a reliable spawn-to-substrate ratio for optimal fruiting, making it a top choice for serious mushroom cultivators.

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€ 132.04

Duties & taxes included

In stock

Sold byAmazon FranceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to France.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Best Sellers Rank	#18,334 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #206 in Garden Soil
Customer Reviews	4.2 out of 5 stars 1,249 Reviews

Boomr Bag Sterile Mushroom Substrate, Manure-Based, 5 lb

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Description

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Common Questions