Zamnesia Ready-2-Grow Bag 'McKennaii'

(166)

Meet the McKennaii Ready-to-Grow Bag—your fast track to powerful magic mushrooms. No setup, no stress. Just activate the bag and wait for your flush of ultra-potent shrooms. Ideal for those chasing deep visuals and next-level trips.

£54.99
£41.24 tax incl.
+33 Extra Gift Points
In stock
Buy 3 units 5% Discount
Buy 5 units 10% Discount

- +
Discreet Shipping
Discreet
Shipping
Fast Delivery
Fast
Delivery
Secure Payment
Secure
Payment
Track & Trace
Track &
Trace
  • More info
  • Reviews (166)
  • Questions (1)
  • Restrictions
More info

Ready-2-Grow Bag ‘McKennaii’ – Zamnesia: Observe a Legendary Strain With Zero Effort

Note: All Zamnesia Ready-2-Grow Bags now have a small corner cut off the top. Don't worry, this is intentional and makes the bag easier to set up. It has no negative effect on mushroom growth and poses no risk of contamination.

The McKennaii Ready-2-Grow Bag offers a simple and discreet way to observe one of the most fascinating Psilocybe cubensis strains out there. Designed for hassle-free at-home cultivation, this full-auto grow bag provides a sealed, pre-colonised environment—perfect for amateur mycologists and experienced collectors alike. Just place the bag correctly, and let nature do its work.

Who Was Terence McKenna?

This strain is named after Terence McKenna—philosopher, psychonaut, and one of the most influential voices in psychedelic culture. A passionate advocate for natural consciousness expanders, McKenna believed that psilocybin mushrooms held the key to understanding deeper truths. Whether myth or tribute, it's said this strain was developed in his honour—possibly derived from Golden Teacher genetics—to reflect his legacy.

What Makes McKennaii Special?

The McKennaii strain sets itself apart from others in the Psilocybe cubensis family. It produces long, thin stems with small, flat caps and a distinctive darker top with an ochre rim. Observers often notice its striking appearance even in early stages of development. Colonisation occurs best at 21–25°C, and under these conditions, you'll witness robust growth patterns ideal for study.

  • Distinct phenotype with dark caps and slender stems
  • Known as a potent variety
  • Ideal for advanced users interested in observation

How To Use the Grow Bag

Using the McKennaii Ready-2-Grow Bag is as easy as placing it in the right environment:

  • Place the grow kit bag in a well-ventilated area. Avoid cupboards, boxes, or basements.
  • Ensure the bag stands upright and that the internal filter stays in the front, not pressed against the back wall.
  • Keep the grow bag in the shade at 20–25°C. Avoid temperatures above 25°C and blocked airflow, which can harm the mycelium and lower yields.

Manual Zamnesia Ready-2- Grow Bag 

Why You'll Love It

  • Easy setup – Just place it correctly and wait
  • No extra tools needed – Fully self-contained grow bag
  • Microscopic marvel – Ideal for observing unique mycelium behavior

All Zamnesia Ready-2-Grow bags have a small tear beneath the white sticker/plaster. This feature enhances CO2 exchange, creating optimal conditions for healthy mushroom growth

Magic mushroom dosage calculatorCalculate

Zamnesia Ready-2-Grow Bag 'McKennaii' data sheet
Volume 2200 ml
Brand Zamnesia Ready-2-Grow
Strain McKennaii
Weight ~2kg

More information related to this product:

Reviews (166)
    (166)
    06/Nov/2026

    Happy with the flush
    IT TOOK A LONG TIME FOR THE FIRST FLUSH, EVEN WITH THE 20 DEGREES TEMPERATURE, BUT AFTER THAT I HAVE A FLUSH EVERY WEEK.

    S. E.
    22/Oct/2026

    Es hört nicht auf!!!!!
    Es wächst wie blöde, habe mittlerweile die vierte Wachstumsphase.......super ;-)

    M. R.
    22/Oct/2026

    Sorpendente
    La crescita è stata lenta, pensavamo ci fosse qualcosa che non andasse. Ma dopo tre settimane ci siamo resi conto che stava arrivando una gettata molto abbondante. Attenzione! Importantissimo garantire un buon ricircolo d'aria.

    F. C.
    21/Oct/2026

    Fetter Sack
    Der Sack ist echt top. Da wächst super viel und wenn man früh genug erntet kann man häufiger ernten

    J. S.
    20/Oct/2026

    Great
    Great product, the bag gave 3 flushes and mushrooms were super big with great effects.

    E. M.
    17/Oct/2026

    Ouah
    Exceptionnel

    S. N.
    12/Oct/2026

    Awful
    Both bags came through green an contaminated

    J. T.
    07/Oct/2026

    Mr mushy
    Shrooms grew very quickly and they were large as well, good stock nice and easy to grow

    S. F.
    07/Oct/2026

    POWER!!!
    You become a GOD!!! XD but it's really good

    A. P.
    07/Oct/2026

    Massive production
    First time with RTGB, I usually bought SUPREME. The production is massive compared with supreme. Bigger size, 3 consistent flush so far. Recommended

    C. B.
    You cannot post a review because you have not purchased this product
Questions (1)
D. 2026-01-30 01:19:56

Is it better if I use the heat mat that you sell or not?

administrator

Hi, Thanks for reaching out to us! Please read the instructions. These kits do not like heat mats. https://www.zamnesia.com/content/953-instructions-grow-bag-zamnesia Please contact us if you have any further questions, we're happy to help!

Ask a question
0/1000
Hide form
Restrictions

Please note that if your country is not on our general shipping list, we’re unable to ship any item on our website to it. For more information check out the list here: Ordering & Shipping

Zamnesia Ready-2-Grow Bag 'McKennaii'
Zamnesia Ready-2-Grow Bag 'McKennaii'
Zamnesia Ready-2-Grow Bag 'McKennaii'
Zamnesia Ready-2-Grow Bag 'McKennaii'
Zamnesia Ready-2-Grow Bag 'McKennaii'
Zamnesia Ready-2-Grow Bag 'McKennaii'
Zamnesia Ready-2-Grow Bag 'McKennaii'
Zamnesia Ready-2-Grow Bag 'McKennaii'
icon_important-info
All products are intended for legal purposes only and are not for consumption or illegal use. Cannabis seeds are sold as souvenirs, and germination is illegal in many countries—please be informed before purchasing. By purchasing, you confirm that you have reached the age of majority and are aware of your local laws. Zamnesia is not liable for any actions taken in violation of these laws. All cannabis, hemp, mushroom-related, and other products are sold in strict compliance with applicable local regulations.