Co2 XL Mushroom Grow Bags

On sale
Co2 XL Mushroom Grow Bags | Home | Specials | Co2

Introductory special offer!

1200 * 1200 growing space.  Dense foliage can easily take multiple bags.

Reduced price!
$80.00 (inc GST)

$90.00 (inc GST)


NZ-made CO² Grow bags are designed to naturally increase CO² levels and improve the yield of indoor grow tents and small greenhouses.

Enriching your plants with CO² can increase growth & yield by 20-40% or more.

These bags are perfect for growing plants and microgreens in small, enclosed spaces. All plants benefit from higher CO² levels, resulting in faster, stronger, and more vigorous growth.



  • Improve plant growth and yield
  • Easy to use
  • Long-lasting
  • Suitable for small spaces
  • Can be used with a variety of plant
  • Safe and eco-friendly
  • Cost-effective

    Traditionally, commercial greenhouses increase CO² levels using complex systems that burn natural gas. CO² Grow bags offer a safer, cheaper, and more eco-friendly alternative by taking advantage of mushrooms breaking down our locally-sourced carbon matrix and releasing CO² gas


Directions for use:

  • Place the bag upright on the floor of the growing environment.
  • Peel off the top front sticker to activate – this allows CO² to disperse through the white filter patch on the front of the bag.
  • Do not remove the white filter patch underneath the activation sticker.
  • CO² will be produced 24 hours a day, for up to 6 months once activated.
  • For peak CO² levels, replace bags every 2-3 months
  • DO NOT OPEN OR MAKE HOLES IN THE BAG - this will shorten the life of the bag.
  • Be sure to keep the CO² bag a safe distance away from lights or heaters.
  • Over time you will see white to light brown growth and liquid form in the bag, this is completely normal and healthy.
  • Bag contents are sterilized, meaning no risk of introducing pests or diseases to your growing environment.
  • No maintenance or watering is required.


Product Life-cycle

CO² Grow bags will last for approximately 4-6 months as the mushroom mycelium breaks down the carbon-producing mix in the bag. CO² production mostly stops after 8-9 months.

Product Activation begins when you peel off the top sticker on the front of the bag exposing the white filter patch. We recommend you write the date you do so on the back of the bag - so you can refer to it when working out when to replace your bags.

Once the bags have done their dash the contents can be easily composted.