P. Cubensis “B+” Spore Syringe Kit

(7 customer reviews)


To ensure the cleanest possible products, all of our B+ spore syringe solutions are made in front of Laminar Flow Hoods with HEPA filters (99.97% efficiency rating). The spore solution is made by mixing sterile distilled water and spores that were printed in Laminar Flow.


B+ Spore Syringe Kit


If you want to buy B+ Spores, be cautious as B+ strain spores are “active spores” which are for microscopy or artistic purposes. We will not complete your order if you contact us regarding the cultivation of active spores. Similarly, for legal reasons if you mention cultivating active spores or ask for cultivating advice, you will be subsequently banned from the site.

These spores are from a species that produces psilocybin and psilocin. For legal reasons they can only ship to 47 out of the 50 United States. Shipping is unavailable to California, Idaho, and Georgia.

These spores and photos were acquired from outside, trusted sources in a legal manner.  Further, Sonoran Spores does not condone or participate in the cultivation of psilocybin/psilocin producing or “active” species.  Sonoran Spores also does not have any mycelium or fruiting bodies of psilocybin and psilocin producing species.  We will not sell any products containing this so do not ask.

Spore Visibility Disclaimer: When you buy B+ spores, visibility is dependent on the characteristics of the spores themselves. As a result, not all spore syringes will look the same visibly.  Some may have some black clumps or specs in them and others may appear clear to the naked eye. Despite these visible differences, spore syringes are still made to be viable for microscopy research.

B+ Spores Information

B+ is another extremely popular Cubensis variety, and with good reason. The wild specimens of this strain found by researchers are some of the biggest Cubensis ever recorded. B+ was first found growing wildly in Florida back in the 1990’s. The first specimen found was a shocking 16 inches (40cm) long! That is definitely much larger than the average Cubensis, especially in the wild. Few varieties can exceed 16 inches.

Once the genetics hit the market they were an instant hit and their demand soared. B+ spores have always been one of our most popular products, second only to Golden Teachers. Because of B+’s large size, and the fact that it is also documented to be highly cold resistant, makes it a popular choice for all spore collectors. Especially beginners!

We strive to provide you with the cleanest possible products. We make all of the B+ spore syringe solution in front of Laminar Flow Hoods with HEPA filters. These HEPA filters have an efficiency rating of 99.97%. Meaning that the filter removes 99.97% of particles in the air. To make the actual spore solution, we take clean spores and mix them with sterile distilled water. Then, a magnetic stirrer properly mixes the solution to ensure an even distribution of spores throughout the solution. 

  • Ships next business day
  • Discreet packaging
  • Spore syringes remain viable for around 1 year
  • Store spore syringes in the fridge for best results
  • Do not freeze

Microscopic Features

The B+ spore strain have dark purplish to black spores which are approximately 13×8 micrometers in size. The spores are subellipsoid (ellipse) shaped and they are present on a 4-spored basidia. The caps vary from 25-75mm in diameter with a convex to conic shape and are generally dark spore printers.

B+ Syringe Kit Contents

Each spore syringe kit will come with:

Additional information


Subtropical- These mushrooms are known to thrive in subtropical climates places where summers get hot and humid, and the winters are mild. Usually these climates are found between the latitudes of 25 degrees and 35 degrees and the southeast side of all continents.


Heavy Depositor- Mushrooms that deposit an immense amount of spores during maturity, billions of spores per fruit and sometimes trillons! This specimens will drop very heavy spore prints.

Research Difficulty

Easy- This variety is good for any level of researcher. Easy to study and use.

7 reviews for P. Cubensis “B+” Spore Syringe Kit

  1. MarcoLB

    The kit was shipped quickly, and despite the freezing temperatures everything still looked good, overall extremely happy with my order!

  2. Samuel Norvell

    Came really fast and looks really solid! Super tight packaging and they sent a couple dope stickers to go with it. I got a goooood feeling about this syringe:)

  3. Mark (verified owner)

    Will update later as well just came to say my order was here in litteraly 49 couldn’t believe it, looks great and even got a little bonus!! Would recommend over and over 👌

  4. Jacob S (verified owner)

    Shipped and delivered quickly with great communication as well! Thank you for a great customer experience, would definitely recommend!

    Appreciated the awesome stickers also, keep it up!

  5. jakematthews918@gmail.com

    Excellent service, quick shipping, and professional packaging. Overall a great experience. Highly recommend!

  6. LJ (verified owner)

    Excellent viable spores! Thank you.

  7. Thomas Maia (verified owner)

    First I would like to inform you that I have ordered spores from numerous sellers. Sonoran Spores takes the customer service and communication of your order very serious. Discreet packaging and inside there was a hand written note and a mystery spore syringe. Troy provides the best customer experience I’ve yet to find in a spore company. From now on they are the only go to company I will choose. Thank you Troy for the constant updates and communication. Your service is a class act. Mush Love

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