Extreme XL Supa Gro Kit 100% 'B+'


This great magic mushroom grow kit contains the very popular Psilocybe Cubensis 'B+' strain, which is known for its beautiful fruit bodies that can grow up to 30cm. Not only that, but the kit will produce a multitude of flushes – up to 7 flushes have been reported. The Extreme XL Supa Gro Kit contains 2100ml of mycelium.

€84,95 tax incl.
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Extreme XL Supa Gro Kit 100% - 'B+': exotic strain that produces magnificent shrooms

Supa Gro's Extreme XL Grow Kit 100% 'B+' contains a 2100ml brick of spore-inoculated substrate, mycelium of the Psilocybe Cubensis 'B+'. This fascinating magic mushroom strain is probably one of the most popular with hobby growers, due to the fact that it produces amazing, large fruit-bodies. On top of that, occasional nausea caused by mushroom trips is a rare occurrence with this strain. So, no need to worry, you will remain uplifted with this strain. The Supa Gro Kit will produce more than a couple of flushes. With just a little care, the average number of flushes is 5 – but there have even been reports of 7 flushes.

Supa Gro magic mushroom grow kits are grown by mycological experts and contain extremely healthy mycelium.

Supa Gro Manual

Scope of delivery

  • 2100ml Grow Box
  • Grow Bag

Use Our Magic Mushrooms Dosage Calculator

Extreme XL Supa Gro Kit 100% 'B+' data sheet
Volume 2100ML
Brand Supa Gro
Strain B+

More information related to this product:

Reviews (35)

    Very good kit for now
    Everything good for now. I had my first flush aroung a hundred or more grams. Let's see what we get next ! :)


    big disappointment
    Got only 7 mushrooms on the first start which were very small. no more mushrooms came, but the box was restarted.


    Extreme XL Supa Gro Kit 100% 'B+'
    Livraison très raisonnable dans ce contexte. Bon produit avec une belle productivité...


    The delivery was fast with discreet packaging. The first flush was a nice 350g of fresh and the second around 200g. I am well satisfied with this.


    Super championnat
    3 à 4 bonnes récoltes avec de gros champignons, effet tres sympa à dose normale.


    Sad show
    So, when you order a shroombox, remember to buy extra grow bags, since the bags often gets to you with mistale made holes underneath. This means whenever you water your kit, the water just flows onto your floor, and also if you don't make something that can replace it perfectly, your shrooms will be dead as well. I wastdd a lot of time, energi and hope for this product...


    very disappointing.
    as a long time zamnesia customer, i was very excited to try the "B+" strain, i have ordered several other growkits from this site, all without problem, however this "XL" growkit has been a massive disappointment, as it has only yeilded 28 grams from its first flush. this is a very small ammount considering this kit is much more expensive than the smaller kits available. waste of money in my opinion and has put me off using zamnesia again.


    schönes kit
    guter ertrag jedocb noch nicht zum verkosten gekommen


    Rubbish, Really hoped for more!
    First off I brought the XL for a bigger flush however it seemed to have less in this tub that the standard sized ones I normally get. Only got about 3g of dried mushrooms from the first flush, the green mold appeared and it was over. This has not happened with the standard sized boxes. In tact this has really made me think of not buying another grow kit again. I had the same problems with the other XL kit I brought at the same time from the same company. Im not a happy customer and I have also told my friends not to bother with these kits. Really hoped for more!


    Only the half of the box is colonizated... so why did i order XXL format ?

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Video (2)
  • Video: The Mushroom Heat Mat By Zamnesia
    The Mushroom Heat Mat By Zamnesia

    Designed to keep your magic mushroom grow kits at the optimal temperature, this electronic heat mat help ensure a successful grow. Here are the basics of its use, and how it stacks up against mushroom grows that do not use heat mats.

  • Video: How To Prepare The Supa Gro 100% Mushroom Gro Kit
    How To Prepare The Supa Gro 100% Mushroom Gro Kit

    We show you how to use the Supa Gro 100% magic mushroom kit. This mind friendly cake containing pure mycelium from Supa Gro 100% will provide you with multiple flushes of strapping healthy cubensis mushrooms. With up to six flushes per kit and 600-900 grams per flush, this no sweat kit can't be beaten. Requiring nothing more than clean or gloved hands, the occasional squirt of water and a snug place to grow. This fun fungus is as easy as one two three.

Extreme XL Supa Gro Kit 100% 'B+'
Extreme XL Supa Gro Kit 100% 'B+'