Made to order in front of a laminar flow hood · Ships Canada-wide from Alberta
Cactus Cowboys Mycology Supplies
FAQ

Straight answers.

If something here still isn't clear, email the lab — a grower reads it, not a bot.

Getting started

I've never grown anything. What should I buy first?+

Normally an all-in-one grow bag — but all four species are sold out right now. The closest in-stock route is Fully Colonized Grain Spawn ($39.99) plus a Premium CVG Substrate Bag ($29.00). There is still no sterile technique for you to do, and it yields considerably more than a single bag.

What is the difference between liquid culture and grain spawn?+

Liquid culture is live mycelium suspended in nutrient broth — you inject it into sterilized grain yourself through a self-healing port. Grain spawn is that step already done and fully colonized. Spawn costs more; it also removes the step most beginners lose their grow on.

Which species is easiest?+

Pink Oyster. It moves fast and is forgiving, so you find out whether your conditions work within days rather than weeks. Shiitake is slower but hardy. Lion's Mane is the fussiest of the four about fresh air.

Do I need a flow hood or still-air box?+

Not for colonized grain spawn going into bulk, and not for an all-in-one bag. You do want a still-air box at minimum if you are working with agar or injecting your own grain.

Stock & how we make things

Why is so much showing as sold out?+

Because everything is made to order rather than stockpiled. When a culture line is being rebuilt at the bench it goes out of stock instead of shipping something we are not confident in. Right now that covers all four all-in-one bags, coco coir, and the Lion's Mane and Reishi grain spawn variants.

What does "made to order" actually mean?+

Your order is assembled at the bench after you place it, not pulled from a batch that has been sitting on a shelf. It is the single biggest factor in whether a culture arrives healthy.

What is a laminar flow hood and why does it matter?+

It pushes filtered air in one smooth direction across the work surface, so airborne contaminants are carried away from an open vessel instead of settling into it. Every step where something of ours is opened happens in front of one.

What does "lab-tested" mean here?+

Cultures are checked for signs of contamination before they are packed. It is a check on what leaves our bench — not a guarantee about what happens in your tent afterwards.

Shipping

Where do you ship?+

Canada-wide, from Alberta.

How is it packed?+

Vacuum-sealed before it leaves the lab, so it arrives in the condition it was packed in.

When are orders prepared?+

During lab hours — Monday to Friday 9:00–5:00 and Saturday 10:00–4:00. Closed Sunday.

If something goes wrong

My culture looks contaminated. What now?+

Email us with photos as soon as you see it, before you throw anything out. Green, black or wet-looking growth is not going to recover, and the photo tells us whether it left here that way or picked something up later.

Will you guarantee I get a harvest?+

No, and be wary of anyone who does. Your temperature, humidity and fresh-air exchange decide the grow. We control what leaves the lab and we will tell you honestly where a problem came from.

Still stuck?

Email the lab and describe what you're seeing. Photos help more than anything.

Contact us
Liquid cultures from
$19.99
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