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Magic Mushroom Grow Kit Mexican XL by Mondo®

The Mexican psilocybe cubensis is the shroom everybody knows and everybody took. There was a time this Mexican strain was the lonely ruler of wisdom in the Kingdom of Magic mushrooms. Now many cubensis mushroom strains are available, but the Mexican is still an all time winner. Large flushes of potent Mexican mushrooms will grow from this XL kit with ease.

Expect a bit longer time for the first pins and mushrooms to show, 2-3 weeks is normal at the moment.

Availability: Less than 5 in stock

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Product Description

Years of planning and testing has resulted in the next generation of Mondo® Mexican XL magic mushroom grow kits. The  Mexican XL grow kit is now even better than it ever was. Compared to the first generation of Mondo®XL magic mushroom grow kit, the next generation is improved with:

  • Larger yields, more mushrooms
  • More flushes*
  • Better resistance against contaminations
  • Different, but easier instructions


*some strains produce more flushes than others. The first three flushes are the largest.

Meet the new standard of easy grow kits

The Mondo® Mexican XL magic mushroom grow kit is slightly different than the grow kits you may have used before. These are mainly 'under the hood' differences and are not easily seen.

Just like the previous and other easy mushoom grow kits, you do not need to use additional spores. During the laboratory process, the spores have developed in mycelium inside the substrate (the cake) in the grow box.

How to store the grow kit correctly

It is recommended to start the cultivation process right away. If you decide to start growing later, you may store the grow kit in the refrigerator (2°C to 8°C) for 2 weeks after productiondate. First, wrap the grow kit in a plastic shopping bag and close it well.


  • 1x grow box – This contains substrate with active mycelium (the cake)
  • 1x large grow bag – The bag has micron filters to keep contaminants out
  • 1x reusable yellow seal – For closing the grow bag.


You need

    • Misting Bottle  – Misting is needed for the humidity level
    • Potable water – For misting and soaking
    • Clean environment – Work clean to give other fungi and bacteria (micro organisms) no chance to contaminate.


    We recommend to use


    How to prepare the room and yourself before you begin

    • Close any open windows. Wind or draft may bring microorganisms that can contaminate the Mondo® 'Mexican' XL Magic Mushroom grow kit.
    • When taking out the grow box with the cake from the carton box, put it on a disinfected surface. If this surface would not be clean, micro organisms may attach to the grow box and will flourish inside the Mondo® 'Mexican' XL Magic Mushroom grow kit, and will contaminate the grow box.
    • Make sure you work with clean hands and arms. We recommend using surgical gloves or a good disinfectant when handling the kit. You should use a facemask to avoid breathing into the grow bag and on the cake.


    Starting the process

    1. Fill the box with fresh, potable water. Close the grow box well and let is soak for 12 hours.
    2. After 12 hours, pour the surplus of water out of the grow box.
    3. Place the grow box inside the large grow bag. The open end of the bag should point upwards.
    4. Remove the lid from the grow box. Rinse the lid, and store it in the ziplock bag for later use. Place the ziplockbag with the lid back in the carton box.
    5. Fold the open end of large grow bag twice; do not cover the micron filter.
    6. Place the reusable yellow seal on the fold, so the bag stays closed. Now the Mondo® 'Mexican' XL Magic Mushroom grow kit is ready to grow.
    7. Place the Mondo® 'Mexican' XL Magic Mushroom grow kit inside the carton box, on top of the ziplock with lid.



    The ideal temperature is 24°C. Do not have the temperature drop under 18°C and not exceed 29°C. To keep the temperature from dropping under the 18°C, you can use a thermo mat to maintain the ideal temperature. A thermo mat  is a must-have in the winter or colder regions of the world.


    The Mondo® 'Mexican' XL magic mushroom grow kit only needs light for the mycelium to ‘understand’ it has reached the surface. Only then, mushrooms will grow. A few hours of fluorescent/artificial light or indirect sunlight a day is more than enough. Direct sunlight kills the mycelium, so avoid the sun to shine directly on the grow kit.

    Water / Misting

    The day after you start the process you begin with misting. Open the grow bag by removing the reusable yellow seal. Do not spray directly on the cake, but spray one time against every side of the bag. So you mist once a day, four sprays. Misting also vents fresh oxygen inside the bag. Right after misting, close the bag again with the reusable yellow seal.


    If the conditions are optimal, you can expect the first small mushrooms (the pins) to appear between 5 and 16 days. This also depends on the strain. Some cubensis strains grow slower than others.


    The mushrooms come up in groups. This can be a small or large group. That depends on the strain. A growth like this is called a flush. Mushrooms are almost never ripe at the same time. You can get more than one flush out of a kit. The first two flushes are the largest. When more flushes come, they will be smaller than the previous one.


    Mushrooms are ripe and should be picked when the veil between the hat and the stem has just torn. Don’t wait much longer. Use surgical gloves or disinfect your hands, wrists and arms. Pick the mushrooms that are ripe and let the others continue to grow. Remove the mushrooms from the cake by taking hold of the base of the mushroom between thumb and index finger. Rotating your hand clockwise slowly, until the mushroom lets go. Do not pull out the mushrooms. This would risk damaging the mycelium and killing it. When most of the larger mushrooms have been picked, also pick the smaller ones and the pins as well.

    Mushrooms that grow from the sides

    Mushrooms grow where the light reaches and where there is little penetrating resistance. Because the cake has light shining on the sides, the mushrooms might also grow there. It is hard to counter this and can be allowed. Some growers wrap the sides of the grow box in aluminum foil to keep the sides dark, but this doesn’t always work well.

    When mushrooms grow there, they can be picked just before you soak the kit:

    Clean hands! Take the grow box out of the bag and place it upside down on your other hand. Wiggle the plastic box so that the cake will fall out, onto your hand. The plastic box can be placed on a disinfectant surface. Now you have this hand free to pick the mushrooms from the sides of the cake. When all mushrooms are picked, you can place the cake back as it was, in the plastic box and continue to the soaking process.


    After all the mushrooms have been picked, you prepare the kit for the next flush. Again, with disinfected hands or gloves; take the grow box out of the large grow bag. Fill the box with fresh, potable water. Take the lid out of the ziplock bag and use it to close the grow box. Place the closed grow box in a soaking Bag or use your own clean plastic shopping bag and wrap it around the box. Close it well and place this in a refrigerator (2°C to 8°C) for 12 hours. This is called the soaking process. Water will now soak through the cake, preparing it for the next flush.

    During the soaking you can hang the grow bag with micronfilter upside down to dry. Make sure to hang it upside down, so no micro organisms will access the bag. Many growers prefer to use new and unused grow bags after every flush.

    After 12 hours take the soaking Bag with the grow box, out from the fridge and unpack it.

    Next Flush

    To continue, follow the same steps 3 – 7 as before when you started the process for the first time. Several days later, a new flush will appear. You can get at least 2 or 3 flushes out of a Mondo® 'Mexican' XL Magic mushroom grow kit. If you are experienced in cultivating, you can get more flushes out of a kit.

    The end

    When no more mushrooms grow out of a grow kit after the second flush for at least three weeks, or when the Mondo® 'Mexican' XL Magic Mushroom grow kit turns green, red, grey or yellow; the grow kit can be disposed of.  The change in color is a sign that the grow kit is contaminated with another fungus or a bacteria. No more mushrooms will grow out of the Mondo® 'Mexican' XL Magic mushroom grow kit and the grow kit should be thrown away in the garbage outside.


    When you are too late picking the mushrooms, they will drop their spores. The cake and the mushrooms will turn black/purple (some other cubensis strains red/brown) because of the spores. This is not really a problem; it just doesn’t look very pretty. When mushrooms release their spores, they also start to degrade and the active ingredients are breaking down. Mushrooms will lose some of their potency.

    Be sensible

    Check out the responsible use page for more information on do’s and don’ts.

    This kit is meant for small-scale home use only.

    Additional Info
    Additional Info
    Productcode MCS.GKMYC.002-MEXI-2100
    Weight (KG) 1.4000
    Mushroom Strain Mexican
    Grow Kit type Mondo
    Difficulty Moderate
    Size Extra Large
    Species Psilocybe cubensis
    Origin Mexico
    Potency High
    Optimum cultivation temperature 23ºC
    Yield (from) 100 grams
    Yield (to) 500 gram
    Water Spray Needed Yes

    Customer Reviews

    Items 1 to 20 of 22 total

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    1. 1
    2. 2
    Mexican XL Review by Nuno
    Nice shrooms for party with friends. First flush was small but second an third were bigger, fourth was lost (my fault). (Posted on 3/1/2024)
    Great product and service Review by iulia
    Amazing service , delivered fast, great communication and product . Highly recommended. Frank the owner is a great helpful guy . (Posted on 11/4/2023)
    is growing nice Review by Dragus
    is growing nice (Posted on 7/19/2023)
    Fantaastic kit Review by Tim
    Great kit for starters giving the moist beautiful mushies and trips.
    Easy to grow and many harvests when done correctly (Posted on 6/30/2023)
    Very good serivce Review by Stefan
    I have some problems in ship but they help me order my styff. (Posted on 5/23/2023)
    Mexican Review by Ivans
    Good servis,good priduction (Posted on 5/6/2022)
    Very Good Indeed Review by Chris
    This kit was very productive as the other I took from this site. Very good all around experience.

    Xoxo (Posted on 11/10/2021)
    good job,keep it that way Review by Rado
    fast shipping, very good quality, I recommend it (Posted on 9/20/2021)
    Disappointed Review by Tadej
    There was no growth after 4 weeks. Green mold appeared. My profession is a microbiologist in the sterile field, probably the box was not infected by me, but it already was. (Posted on 2/17/2021)
    Disappointed. There was no growth after 4 weeks. Green mold appeared. My profession is a microbiologist in the sterile field, probably the box was not infected by me, but it already was. Review by Ludvik
    Disappointed. There was no growth after 4 weeks. Green mold appeared. My profession is a microbiologist in the sterile field, probably the box was not infected by me, but it already was. (Posted on 2/17/2021)
    nice Review by zoran
    had some wonderful times (Posted on 8/1/2020)
    nice Review by zoran
    had some wonderfull times (Posted on 8/1/2020)
    Not bad but it was too cold Review by Dariusz
    It' was too cold to let them grow, kit was active but it was little to cold in the room to show full potenial. (Posted on 6/30/2020)
    Good Review by Janis
    Prity good sort i like (Posted on 5/13/2020)
    Very happy Review by Psyshroom82
    I received the kit in the post with in a decent amount of time, the instructions easy to follow, making the process simple and satisfying. I've never grown anything before so this kit has been has been a great starter for me personally.

    I would highly recommend this way of starting out to anyone considering growing their own (Posted on 3/6/2019)
    Mex Review by Jozsef
    Nothing has been growing since I ordered, more than 3 weeks ago....
    I follow the instructions but I need the thermo mat for it, I ordered one along with this shrooms too, but never ever received. I reported the problem, they kept me promising, but nobody has fixed this issue, so I can throw all of the stuffs to the bin....and my money is going out through the window as well....very
    [MMS EDIT: This was indeed very unfortunate. Our sincere apologies for the missing thermomat. We are going to contact you to resolve this as soon as possible.] (Posted on 12/11/2018)
    Not good Review by Christopher
    The first flush didn't happen at all. I have done this process many many times so it wasn't through lack of experience. I will cold shock the kits again in the next few days and hope that it works better than the first failed flush. If it doesn't work then unfortunately I will be a one time only customer to your company.
    [ MMS Edit; When customers are experiencing grow issues they can always contact our customer support for help ] (Posted on 8/15/2018)
    Excellent service but I'm no mushy farmer ;) Review by JackLad
    Great service with quick delivery but its difficult to give a good review as my mushroom husbandry skills obviously weren't up to much and kit failed after producing a solitary fungi :( (Posted on 12/26/2017)
    Didn't go so well Review by Ink
    Let me start by saying that the support was great, i was really amazed how friendly they were ! Unfortunately the product failed to deliver the same quality. My first attempt failed because mould was on the bottom of the cake, i really don't know how mould works, but i would expect it to grow on top of the grow kit if it was due to a lack of care from my side. The second attempt, wich was given as a replacement (thanks again!) shows less life signs than my ex's heart. I cleaned the set up and environment, checkt the temperature and payed attention to the smell... still nothing happened. Maybe it was bad luck or my lack of skills, either way, i am a bit disappointed. Besides that i think you guys are doing an amazing job! Maybe next time i get lucky (Posted on 6/15/2017)
    big beautiful looking shrooms Review by shroom
    Some tend to grow on the sides indeed but compared to the other strains I've grown the shrooms get quite big and look really awesome... :) I contacted the support desk with some questions, and got a very informative reply quickly... Oh and thanks for the syrup waffle :) that was a cute little surprise. (Posted on 4/12/2016)

    Items 1 to 20 of 22 total

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    Important information about Mondo® Grow Kit Mexican XL

    • The purchase of this product is restricted to individuals who are at least 18 years old.
    • By initiating a purchase, you confirm knowledge of and compliance with the legal terms regarding the product(s) in your country of residence, as well as your eligibility to acquire and hold them.
    • Shipping restrictions apply to this product. Refer to Additional Info to discover our non-delivery zones.
    • Engaging in the consumption of magic mushrooms is solely your responsibility, so be certain to thoroughly educate yourself about their usage and consequential effects.
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