Your Success is Our Success!

We are here to help you grow an abundance of fresh mushrooms to feed your family, friends and community. If you have any questions or concerns, please feel free to contact us. We want to ensure that you are completely satisfied with your Grow Mushrooms Canada experience.

Our Guarantees

Guaranteed Healthy Cultures

We guarantee our cultures to be healthy, contaminant-free and capable of producing high yields of mushrooms under proper growing conditions. We have selected high quality varieties which are grown by commercial mushroom farmers for their ability to produce high yields of good quality mushrooms.

Please inspect your cultures on arrival and report any concerns within 48h to be eligible for a replacement.

Your success in mushroom cultivation depends upon many factors outside our control, such as sterility, substrate quality and environmental conditions. For those reasons, we can not guarantee your success or specific yields. We do however guarantee a first crop on certain “Mist & Grow” mushroom kits (link to below).

“Mist & Grow” Kits – Guaranteed to Make Mushrooms!

We 100% guarantee your first flush on select “Mist & Grow” Kits (Pearl Oyster, Blue Oyster, Elm Oyster, Yellow Oyster, Pink Oyster and Lion’s Mane), as long as you have followed our instructions and misted under a humidity tent a minimum of 3 times daily.

Please consult our FAQ for tips to resolve common challenges grower’s encounter. If your kit does not start to grow mushrooms within 2 weeks of cutting an opening, please contact us with photos of your set up and we will help troubleshoot to ensure you are providing the right conditions for success. If still no mushrooms by week 4, please send photos and we will happily issue a coupon for a replacement kit.

We can not guarantee our “more advanced” types of mushroom kits to fruit, as they require special care such as high humidity over a longer period of time. Nevertheless, your success matters to us so please do reach out with photos for advice and tips.

Stellar Customer Support

We are committed to the success of our customers and will do everything we can to help you on your mycological journey! As a small family business, at times we are stretched to our limits. However we will do our very best to reply to all inquiries within 24h.

Refunds, Returns & Exchanges

Our Bad?

Did we ship the wrong item? Is something missing or damaged?

Our apologies for the inconvenience! Please contact us so we can promptly make it right.

Your Mistake?

Order the wrong products? Provided the wrong shipping address? Forgot to track your parcel and pick up from the post office in time?

We will gladly help resolve the issue, and request that you pay for any additional shipping incurred.

Please double check your order and shipping address before checking out. It is your responsibility to track and bring your parcel indoors promptly to minimize exposure to extreme heat or cold. At times Canada Post will hold the parcel at the post office and leave a card for pick up. If you do not pick up in the specified time, they will return your parcel to us.

Living Mushroom Cultures Non-Returnable

Due to their perishable nature, we can not exchange nor accept returns of living mushroom products like mushroom kits, sawdust spawn, plug spawn or liquid culture.

For peak viability we recommend using your mushroom products within weeks, and storing in a cool location until use. Refrigeration between 2-4C is ideal for the longest shelf-life. Even when refrigerated, the fungal mycelium continues to grow, and eventually mushrooms burst out one way or another.

Take care to not damage packaging as holes will allow access by mold spores and other contaminants.

Refunds will only be issued in the rare case of contamination in sealed cultures, or when there is no growth despite refrigerated storage and used within one month after purchase date.

Non-Perishable Products

Non-perishable products in original packaging can be returned within 30 days. Products must be unused, in perfect condition and in original packaging. As soon as we receive the returned item, we will issue a refund minus the original shipping cost.

As a small family business, we regret that we can not refund original shipping, nor pay for return shipping. Please double check your order before paying, and reach out to us if you have questions prior to placing an order.


To cancel or modify an order, please contact us right away. We strive to ship the very next business day after your order has been placed, so the window is short to make any changes!

If your order has already shipped, please refer to our returns policies for non-perishable products and living mushroom cultures.


We strive to ship your order within one business day. If your shipment will be delayed by more than 3 business days, we will notify you by email with the timeline and options for substitutions or a refund.

Once on route, Canada Post expedited shipping guarantees your order will arrive within 2-4 more days (depending on your location). Canada Post may at times suspend their delivery guarantee, such as during peak seasons like Christmas, or during natural disasters that impact transit.

Monitor Tracking of Living Cultures

If your shipment contains living mushroom cultures, it is your responsibility to monitor tracking and arrange to bring your parcel indoors as soon as possible to protect from exposure to extreme heat or cold.

We request that Canada Post ships “Do Not Safe Drop”. This means that they will leave in your mailbox or a safe place, but if no one is home they may instead bring the parcel back to the post office and will leave a card for you to pick up.

We put a sticker on your parcel to remind you to refrigerate living cultures to ensure peak viability until use. For more information on best storage practices visit our FAQ page.

Free Shipping

Free shipping on orders over $150. The following products are excluded from free shipping:

  • Gift cards
  • Full boxes of filter patch bags
  • 10kg pellets and 20kg rye

Please remove excluded products from cart in order to enjoy free shipping on qualifying products, and place a separate order for any excluded products.

We ship within Canada only.


Need help?

Contact us here.