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You can select the following XL mushroom kits in this 4-pack deal:

  • B+ Mycelium Box
  • Columbian Mycelium Box
  • Cambodian Mycelium Box
  • McKenaii Mycelium Box
  • Mazatapec Mycelium Box
  • Mexican Mycelium Box
  • Pes Amazonian Mycelium Box
  • Thai Mycelium Box
  • Treasure Coast Mycelium Box
  • Golden Teacher Mycelium Box
  • PF Original Mycelium Box
  • Nepal Chitwan Mycelium Box
  • Hawaiian Mycelium Box
  • Costa Rica Mycelium Box
  • Puerto Rican Mycelium Box


Our online manual for the mushroom mycelium kit can be viewed at www.mushroomgrowbox.org.

 There are no paperclips included in these boxes.

These XL mushroom kits can grow up to 1 kilogram of fresh magic mushrooms each, given the correct conditions:
* Temperature: steady temperature of 22-26 degrees celsius (day AND night)
* Light: 12 to 14 hours of light per day, NO direct sunlight. Do not expose it to 24 hours of light per day.
* Humidity: Spray the insides of the filter bag 3 times a week, or put a layer of water on the bottom of the filter bag.

Because the kits are fresh we recommend to set them up right away.

Mushroom Stopper - Bad Trip Stopper
If this will be the first time you use magic mushrooms, make sure that a sober friend is around to help you out in case you feel uncomfortable, sick or scared. Click here to buy our Mushroom Stopper. Our Mushroom Stopper, it helps you to get out of your trip.


We do NOT ship to countries outside the E.U.

If in doubt, please contact us and we will inform you if we will ship these XL mushroom boxes to you!!!

Mushroom growbox manual


Step 1
Wash your hands thoroughly and clean the outside of the grow kit with a clean, damp cloth. Remove the lid, but keep it for step 3.

Step 2
Fill the kit with water up to the edge of the kit (20 º C). Place the lid and let the mushroom growkit soak for 12 hours.

Step 3
After soaking, remove the lid of the grow kit and carefully pour off the water, until the last drop.

Step 4
Add warm water (20 º C) to the grow bag.

  • For the 2100cc grow kit: 2 cups (0,5 liters)
  • For the 1200cc grow kit: 2 cups (0.5 liters)
  • For the 250cc grow kit: 1 cup (0.25 liters)

Put the grow kit in the grow bag. Make sure the water does not go over the edge of the grow kit.

Step 5
Close the growing bag by folding the top of the bag and secure it with one or two paperclips (part of the grow kit package).

Step 6
Put the grow kit in a place out of direct sunlight but enough daylight, and not on or near a heater or heat source. The ideal temperature is between 20 and 25 º C. Make sure there is sufficient sunlight.

Step 7
The first mushrooms will be visible in 10 to 12 days.

Step 8
The mushrooms should be harvested just before the skin underneath the hats starts to loosen up.
The harvest: grab the stem gently and turn the mushroom to the left and than to the right and gently pull. This way you can remove the mushroom as complete as possible. This way you can reuse the grow kit.


Enjoy your shrooms!

new flight
After harvesting, clean the surface of the grow and remove the old and dead mushrooms, so the new mushrooms have the ability to grow. Put the grow kit for the best results in the refrigerator overnight. Caution! Not colder than 2 ° C.

Start again from step 5 for the next harvest.



  • The ideal climate is 22 º C.
  • Work very clean!
  • When using a heating mat, make sure there is between the heating mat and the growkit. (1 cm) 
  • Don't use a heating mat for temperatures above the 20 degrees. 
  • Try to avoid mushroom spores on the substrate, it will kill the mycelium.

We bought 2x GT and 2x B+ and divided by four people. We are complete noobs and still every single kit worked flawlessly! Some yields were bigger, some smaller - I had some nice GT yields even in my very cold apartment which came as a surprise.

I would add the importance of fanning out your plastic bag several times a week in the description. With just water in the bag your mushrooms will be covered in white fuzz, they need fresh air exchange.

Evaluation: [out of 5 Stars]

Gute Sets,
Besonders die golden teacher! Dicke Fruchtkörper mittlerer bis hoher Ertrag! Ein Stern Abzug für den extrem geringen Ertrag und die kleinen Fruchtkörper der B+. Der Versand ist zügig und die Aufzucht super einfach.

Evaluation: [out of 5 Stars]

I had 4 XL kits and the results were very good.

3 of them grow vey good, I had about 5 flushes.
1 of them was not so lucky, it growed preety slow. Golden Teacher it was.

I was very satisfied with the result.

Evaluation: [out of 5 Stars]

3/4 Kits not coming...and im a pro..
Evaluation: [out of 5 Stars]

Sehr sehr gute boxen alles geklappt gerne wieder..
Evaluation: [out of 5 Stars]

Ich bestelle hier fast wöchentlich doch die letzten 3 mal erhielt ich nur verschimmelte Boxen.. anfangs war ich sehr überzeugt, es kamen nur gut durchwachsene Boxen an.. doch neuerdings bekomme ich Boxen mit anderem Deckel, extrem viel deckschicht, viel zu kleinen Tüten und die paperclipps gibt es auch nicht mehr..
Ich rate jedem davon ab hier weiter Geld zu investieren, denn die Qualität ist grauenhaft geworden.. mal schauen wie die anderen Shops so sind

Evaluation: [out of 5 Stars]

As a beginner I ordered Golden Teacher, Thai, Amazonian and Albino, they all grew very well. I got 5 flushes out of each mycelium and a lot of shrooms.
I would recommend to block light from the sides with aluminum foil or to leave them in the box they send in by putting them in the sterile bag and than back in the box. It is not necesarry to put water in the bag, if it is closed carefully and the mycelium was watered thoroughly.

Best regards

Evaluation: [out of 5 Stars]

These are a 5/5 for advanced growers. Only 3/5 for noobs.These are harder to grow than the 100% mycellium growth kits, thats why 4 of these large ones cost what 4 of the 100% mycellium mediums do. They can yield a LOT if you know what you're doing. DO NOT use the heating pads for these. These grow best in a warm/hot room in indirect sunlight and you need for the mycellium to settle into the substrate in order to yield well. I put 2 in my fridge while i grew the first two and the first two yielded fine once i got the room temp right. The next two grew even better because the first two were a trial run. NOTE: i only got about 2 yields out of these due to my inexperience. This should only be a convenience for you if you're an experienced grower already. If you're a noob like me DO NOT get these. I'd give em a 5 if they were easy to grow but this is ONLY for advanced growers. Get the 100% mycelium ones and 2 growing pad so you can fit 4 medium ones on them instead of these 4 large ones. 3 medium 100%'s yielded more than 4 of these big ones FOR ME. Be sanitary and be very patient.
Evaluation: [out of 5 Stars]

Best deal out there. I love being able to buy 4 kits at a good price. I get to try different strains with each purchase. I've found some favourites now so order 2 of them then pick 2 I haven't tried before. When I have had a problem with my kits. The customer service has been amazing. They tried to help me fix the problem when it wasn't fixable they sent me new kits out. Will be ordering again in a couple of weeks.
Evaluation: [out of 5 Stars]

i order 4 kits and get arround 100g of dried mushrooms of them. 2 kits become moldy with the same conditions. After first flush i need to throw everything away.
Evaluation: [out of 5 Stars]


These kits are really cheap for quality. I had some problems 2 years ago with hot weather conditions. At the time, avalon did not indicate any disclaimers and sent me additional boxes on my next order. Excellent products, excellent after sales service, only good !

Evaluation: [out of 5 Stars]

very good quality and price greece from austria
Evaluation: [out of 5 Stars]

(gabe khan)
Never had a problem with these. Totally reccomend them :)
Evaluation: [out of 5 Stars]

Bought these 4 kits right before the summer. Was expereinceing some problems with 2 of them, but talked to avalon and they gave me solutions.
Evaluation: [out of 5 Stars]

(Will Moore)
Mushrooms arrived in good time, packaged securely. The kits are simple to use and a perfect solution for an inexperienced grower
Evaluation: [out of 5 Stars]

Ich habe dieses Jahr Golden Teacher, Mexicans, B+ und Cambodian bestellt und musste leider feststellen, dass die Qualität der Sets seit meiner letzten Bestellung stark nachgelassen hat. Offensichtlich war das Mycel noch sehr wenig ausgeprägt. Es hat bei allen Sets mindestens 4-6 Wochen gedauert, bis sich überhaupt ein Pilzchen gezeigt hat. Das einzige halbwegs ergiebige Set waren die Golden Teachers, bei den Cambodian hab ich vielleicht 10 (relativ große) Pilze und bei den Mexicans und B+ so gut wie gar nichts. Wohingegen bei meiner letzten Bestellung im Jahre 2017, die Pilze (McKennaii, die dieses mal leider ausverkauft waren) geradezu gewucherten und ich nach 3-4 Wochen schon den ersten Schub (von 10 oder so) ernten konnte.
Im Endeffekt war das alles sehr enttäuschend und gewiss keine 34€ pro Set wert.

Evaluation: [out of 5 Stars]

I ordered 4 XL mushroom kit containing 2 x Mexican, 1 x Thai and 1 x B+. Since I was leaving for vacatrion the day of the order, I asked the avalon-stuff to wait a little bit, until they send it. I was very happy about the quick answer and everything was very uncomplicated.

I put them up 3 weeks ago and until now there is not much to see:
- Thai: Mushrooms are mostly growing at the edges of the kit
- B+: There are a lot of very small shrooms all over the kit. Seem to look alright
-.Mexican 1 + 2: Unfortunately there are only 2 shrooms per kit. I picked them yesterdays and I am still hoping, that there will be more mushrooms to come.

I am a little bit worried, because the mushrooms dont grow well, but I still have hope, that they just need more time.

Evaluation: [out of 5 Stars]

Vers nice immer wieder gerne
Evaluation: [out of 5 Stars]

Actually, I ordered 2 A+ Albinos and 2 B+ boxes. Unfortunately, A+ Albinos weren't in stock. After writing a short mail, Avalon immediately sent my desired GTs and B+. Shipping was completely okay, as fast as you expect it to be. However, I don't like those new(?) brackets which are supposed to keep the bag closed. For me, they were way too loose. I'm going to use the brackets from previous orders.

All in all, Avalon did a great job again. Unfortunately, the brackets are pretty crappy, that's why I'm going to rate this order a 4/5.

Evaluation: [out of 5 Stars]

ordered this set, after 3 weeks >> no flush
support does not answer ..

what's wrong with you?

Evaluation: [out of 5 Stars]

Including UK delivery it cost me about 165 euros , the "fast" delivery took over a week from the date they received my payment before I received my kits , within 48 hours of receiving them 2 out of 4 kits were mouldy , within 3 weeks the other two kits only produced about 4 mushrooms between them which all stalled , after this I gave up waiting and harvested what was there and put them in the fridge with water for another soak , this seems to ha e helped as one of the kits produced 2 pins within a couple of days and the other at least looks like it is doing something, I'll give it another 3 weeks and I'll come back with an update on what's happening with them.
I contacted Avalon almost a week ago now to see if they can sort this out before I post a review but I have heard nothing back from them.
Also only two out of the 4 kits I chose came, the other two were random strains I didn't choose .

Evaluation: [out of 5 Stars]

Delivrely was fast as they promis, now after around ten days of waiting, all the boxes have mushroom growing well. It's not my first and i still follow the instructions to keep everything well. I will update after the first harvest to let you know how is going with the product of this supplier .
Evaluation: [out of 5 Stars]

I bought 2 xl with McKenaii 1 xl with Mexican and 1 with Golden Teacher. Delivery was very fast, shrooms grew fast, the half of one Box spoiled because of Contamination...maybe. But strong Flush and nice tripps.
Evaluation: [out of 5 Stars]

(kwesi kramer)
can't beat this for value for money.
Evaluation: [out of 5 Stars]

(Waltraum Hofbär)
After ordering it took like 10 days until I got the growkits, which was longer than I thought. I put them up and got worried because nothing happended for another 10 days. But in the end the first little mushrooms showed up and everything was fine! I will order again soon!
Evaluation: [out of 5 Stars]

Really nice yield and best price i know ;)
B+ are the strongest halucinations i think...
Albinos are more activating and partying!!!

Evaluation: [out of 5 Stars]

bought 2 xl with mcenaii and 2 xl with gt, grew fast, one spoiled, yield could be better :( but this is only our concern, cuz was not grew properly and sht
Evaluation: [out of 5 Stars]

The delivery was fast and The growkits look awesome...I started them already...I will update after I harvest...first time buying from Avalon but compare to other companies I was buying before, the impression i got regarding the products is really positive
Evaluation: [out of 5 Stars]

The delivery was fast and The growkits look awesome...I started them already...I will update after I harvest...first time buying from Avalon but compare to other companies I was buying before, the impression i got regarding the products is really positive
Evaluation: [out of 5 Stars]

Very fast and stealthy delivery. Also great quality, no complaints whatsoever.
Evaluation: [out of 5 Stars]

(Dia positive)
Commande de 4 box XL de champignons albinos (je trouve que les albinos sont les meilleurs sur la majorité des sites)
Je fais pousser des box depuis plus de 5 ans.
Je n'ai jamais eu de box qui n'a pas fonctionnée.
3 box sur 4 n'ont donné AUCUN champignons. Celle qui à donné des champignons en a donné en très petites quantité (5gr sec)
Message envoyé au service client : aucun réponse.
C'est dommage, les box ont l'air bien pourtant, mais la, sa fait 136€ dans le cul.

Evaluation: [out of 5 Stars]

(Ani K)
Ich hatte am Anfang zweifel ob das Paket wegen dem Zoll ankommt. Jedoch war es nach 3 Tagen schon da super diskret verpackt! top Service top Preise
Evaluation: [out of 5 Stars]

Meilleurs prix, rapidité d'envoie, service client, qualité des kits qu'on peut trouver sur internet. Beaucoup de choix.

Evaluation: [out of 5 Stars]

(Vincent BUSCH)
Perfect, just perfect ! The best of the best haha !
Evaluation: [out of 5 Stars]

Very good price! Perfekt schipping! Best quality, which you can get! I'm very satisfied...
Evaluation: [out of 5 Stars]

very good quality goods, I am very happy, because everything from orders to delivery is very quick and easy. I hope that we will continue to cooperate, thank you and best regards.
Evaluation: [out of 5 Stars]

Really good buy, good price, good quality, really happy
Evaluation: [out of 5 Stars]

(Saro Bedian)
I ordered and grew eight of these growkits and had a very good yield total of high potency magic mushrooms. It is best to try them slowly in a low heat dehydrator and NOT in an oven, as that will destroy the psilocybin. I took them many times and also never eat hairy mushrooms, mushrooms with little hairs on them, or you will get sick. Otherwise a great product.
Evaluation: [out of 5 Stars]

I have to say, that I'm very pleased with their service. At first, I was a little scared that something happened to my money, that I've sent in
envelope because post delivery took long time - but they calmed me down and after few days told me that they got my delivery.
Message to everyone: please be patient, it's not their fault for delays, they really do their best and there's no need to be worried about anything. Service: 5 stars

Evaluation: [out of 5 Stars]

(peter schuff-werner)
die beste sache die es überhaupt gibt.es ist übertrieben einfach und das ergebniss spricht für sich.einfach nur zu empfehlen.wenn man sich seinen jahresvorrat besorgen wil,dann ist dies die beste möglichkeit
Evaluation: [out of 5 Stars]