McKennaii Mushroom Grow Kit is a species derived from another species in a laboratory, achieving higher concentration and potency. Get waves of large, heavy mushrooms with round caps.
IMPORTANT: The mushroom grow kit cultivation instructions are included in a QR code on the packaging. Scan it once you receive the product, follow the step-by-step guide, and maximize your harvests.
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Description
The McKennaii mushroom grow kit is a laboratory hybrid created in honor of the American writer, researcher, and psychonaut Terence McKenna, known for his numerous books on magic mushrooms. This variety of Psilocybe cubensis is famous for its potency, which is even rumored to surpass that of Copelandia cyanescens, also called "Hawaiian." Additionally, it stands out for its abundant production and highly philosophical journey, making it a unique experience.
McKennaii mushroom variety typically measures around 10 cm, with a thick, vigorous white stem and a round, orange-brown or dark brownish cap, making them highly recognizable. Although they do not grow very large and their shape can be somewhat thin and slender, they tend to grow in large quantities, which makes their cultivation simple and very productive.
McKennaii mushroom grow kits are notable for their high psilocybin content, which translates into a potent and intense effect. This variety combines a strong visual load with deep introspection and a markedly philosophical character, thus promoting creativity and inner exploration.
Cultivating the McKennaii mushroom grow kit requires special attention to obtain optimal harvests, as it is quite sensitive to heat and humidity. Maintaining a clean environment and carefully controlling temperature and humidity is key to maximizing production and cultivation duration.
To harvest McKennaii mushrooms, twist them slightly with your fingers, leaving the base of the stem; this will help with subsequent fruiting.
You can also purchase a complete and economical mushroom kit from our website.
Once received, the McKennaii mushroom kit should be stored in the refrigerator, preferably in a cool area with a stable temperature, such as the vegetable drawer. The maximum recommended storage time is 4 days from receipt, provided it is kept properly refrigerated. After this period, its original conditions cannot be guaranteed.
At GB The Green Brand, we share this content with the aim of informing and providing knowledge about McKennaii mushrooms. We do not seek to encourage their consumption. Each reader is responsible for how they interpret and apply this information, and therefore we are not responsible for any misuse.
McKennaii Mushrooms are a hybrid variety of Psilocybe cubensis created in a laboratory, in honor of the psychonaut Terence McKenna. They are distinguished by their high concentration of psilocybin and their potency superior to many other varieties.
They are medium-sized, around 10 cm, with white, thick, and vigorous stems, and round, orange-brown or dark brownish caps. Although not very large, they tend to grow in large quantities.
They produce a potent and intense effect, with strong visuals, deep introspection, and a philosophical journey that stimulates creativity and inner exploration. They are recommended for experienced users.
You should gently twist them with your fingers, leaving the base of the stem to encourage future fruiting.
Detailed instructions are available by scanning the QR code on the packaging, to guide you and get the most out of your cultivation.
You can start with them, but they are not the easiest. McKennaii is quite sensitive to heat and humidity, so it needs a temperature between 22 and 25 °C (24 °C is ideal) and humidity between 60 and 80%. If you maintain these conditions and keep the container clean, the first mushrooms will appear in 15-20 days, and the kit can yield up to 4 or 5 harvests, with the first ones being the most abundant.
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27/09/2026
Recommend these always grow good!
12/05/2026
Incredible speed with which they delivered the product. Thanks!!!
Translated from Spanish
Increíble la velocidad con la que han entregado el producto. Gracias!!!
1 person found this comment helpful.
01/03/2026
Shipping: arrived in one business day. Really spectacular. There was a small issue with the payment (with crypto) totally unrelated to GB, rather with their payment provider, but they solved it instantly; in fact, I mention it more to highlight the team's efficiency than the problem itself. Grow: it was my first time growing a mycelium cake. I think the rainy, sunless days didn't help much, the first pins took a very long time to appear, about 15 days, and thanks to customer service recommending that I close the bag completely until they showed up, that did the trick. Then they grew slowly and not at their healthiest (ventilate well once they appear). I ended up harvesting the first flush which yielded about 40g (not much) and with pretty small mushrooms. I probably did something wrong, but I really appreciate GB's customer service, I sent them photos and they gave me recommendations and tips, and following them helped a lot; the mushrooms didn't turn out perfect, but they weren't ruined either. Now, the second flush, probably helped by the sun and warm days, and this time with the advice from the GB team right from the start, was super fast, in 3 or 4 days there were already pins and in 8 or 9 days total I harvested some GIANT, perfect mushrooms, got about 120g, which are now drying, and I've already started the third flush. I truly appreciate customer service, for real. Quality: what can I say, first time, totally insane, spectacular. Obviously I'll have to try other strains, but I'm telling you, if it's your first time, go for these with confidence, you won't regret it. Tip: the QR instructions are fine, but don't stop watching videos, forums, this website's blog, etc. Depending on the area, the climate, and I guess the strain, you might need to tweak things here and there. And don't hesitate to email the team, they know a ton and reply instantly. Thanks!!
Translated from Spanish
Envío: llegó en un día hábil. Espectacular realmente. Hubo un pequeño incoveniente con el pago (con cripto) totalmente ageno a GB sino con su proveedor de pago, pero me lo solucionaron al instante, de hecho lo menciono más para hacer notar la eficiencia del equipo que el problema en sí.
Cultivo: era la primera vez que cultivaba un pan de setas. Creo que los días lluviosos y sin sol no ayudaron mucho, tardaron muchísimo en aparecer los primeros primordios, unos 15 días, y gracias a que el servicio al cliente me recomendó cerrar la bolsa completamente hasta que aparecieran, y así fue. Luego crecieron despacio y no de lo más sanos (ventilar bien una vez que aparezcan). Terminé cultivando la primera tanda en la que salieron unos 40gr (poco) y con setas bastante pequeñas. Seguramente algo habré hecho mal, pero valoro muchísimo la atención al cliente de GB, les envié fotografias y me dieron recomendaciones, tips y seguirlos ayudó muchísimo, las setas no salieron perfectas pero tampoco se arruinaron. Ahora bien, la segunda tanda, seguramente ayudada por el sol y los días cálidos, y esta vez con los consejos del equipor de GB desde el inicio, fue rapidísima, en 3 o 4 días ya había primordios y en 8 o 9 días en total coseché unas setas GIGANTES y perfectas, salieron unos 120 gr, que ahora se están secando y ya puse en marcha la tercera tantda. Valoro muchísimo el servicio al cliente, de verdad.
Calidad: qué decir, primera vez, una locura realmente, espectacular. Lógicamente deberé probar otras variedades, pero te digo que si es su primera vez, prueben con estas tranquilos, no se están equivocando.
Consejo: las instrucciones del QR están bien, pero no dejen de ver videos, foros, el blog de este mismo portal, etc. Depende la zona, el clima y supongo que la variedad, habrá que hacer alguna u otra cosa diferente. Y no duden en consultar por mail al equipo que saben muchísimo y responden al instante.
Gracias!!
4 people found this comment helpful.
14/01/2026
Now they come pre-hydrated, I think they didn't before, that way the risk of accidental contamination is avoided :)
Translated from Spanish
Ahora vienen prehidratados,creo que antes no,asi se evita riesgo de contaminación accidental :)
2 people found this comment helpful.
20/11/2025
I just received my order, best costumer service I ever had, I had some problems with the address they didn't let me stress about it they fixed it and always respond on time it was so helpful.
Thank you so much guys and I will definitely buy from you again.
31/10/2025 Compra Verificada
I’ve been buying stuff from GB for sometime now and I couldn’t rate them high enough
Service, postage, answers to all my questions, enquiries, 10 out of 10
Recently my grow kit turned out to be contaminated and they sent the replacement one in no time
And the magic couldn’t come out more beautiful
Thank you GB for being such a great company along the way and in a sense of the word
You rock ?????
30/10/2025
My 2nd order, Super service, 2 days after ordering it was sent, well packed, everything as agreed was included. Anytime again!
26/10/2025
It arrived in 2 days but it was contaminated, after talking to customer service they replaced it free of charge and it arrived the next day, I'm very happy with the service received and the mycelium cake fruited after six days very abundantly waiting to pick the first harvest, I have the cake in a propagator with artificial light 12 hours a day and it works really well, in short I was wary of buying this product online but it turned out to be a very pleasant surprise in every way, 100% recommended
Translated from Spanish
Me llego en 2 días pero estaba contaminado, después de hablar con servicio cliente me lo repusieron sin coste y me llegó al día siguiente, estoy muy contento con la atención recibida y el pan me ha fructificado a los seis días muy abundante esperando recoger la primera cosecha, el pan lo tengo en propagador con luz artificial 12 horas al día y funciona muy bien, en resumen desconfiaba de comprar este producto por internet pero a resultado ser una gratisima sorpresa en todos los sentidos, 100X100 recomendable
1 person found this comment helpful.
21/10/2025
The order didn't even take 24 hours to arrive but I don't have the instructions?
Translated from Spanish
Ni tardò 24 horas en llegar el pedido pero no tengo las instrucciones ?
08/10/2025
It's not the product's fault, we weren't rigorous enough.
Translated from Spanish
No es culpa del producto, no fuimos rigurosos.
02/10/2025
Hello, it was a good experience growing magic mushrooms at home. I'm on the 3rd flush, the first one I harvested 250 grams, the 2nd flush I harvested 150 grams. The quality of the mushrooms is very strong, you really have to go easy on the dose and not exceed the recommended level. Honestly, for a beginner I'm very happy with this site, I highly recommend trusting this site and especially their fast delivery. I have nothing to say, bravo! Keep up the good work and I await your reply for my next order that I need to place as soon as possible.
Translated from French
Bonjour ca été une bonne expérience a cultiver des champignons magique Cher moi je suis dans le 3 ème Flunch le premier j'ai récolter 250 gramme le 2 ème Flunch j'ai récolter 150 gramme la caliter de champignons et très forte il faut vraiment aller doucement avec la dose et ne pas dépasser le tôt a respecter franchement pour un débutant je suis très contant de ce site je recommande vivement de faire confiance à ce site et surtout leur livraison rapide J'ai rien a dire bravo Bon continuation et j'attends votre réponse pour ma prochaine commande que je dois faire plutôt posible
29/09/2025
They came out great, I'm already on the 3rd flush. Studying them is a great experience!
Translated from Spanish
Me salieron genial, ya voy por la 3º tanda. Su estudio es una gran experiencia!
1 person found this comment helpful.