Impressively large yet gentle in character—that's the B+ in a nutshell. This popular strain produces mushrooms that can reach 30 centimetres, with thick stems and broad caps. Despite the size, the effects remain approachable. You'll receive a complete package with colonised substrate, a filtered grow bag, and paperclips. Expect 300-500g fresh per flush; store the kit refrigerated for up to six months.
Some mushrooms catch the eye through sheer size, and the B+ is the prime example. Specimens of twenty to thirty centimetres aren't unusual. Yet 'bigger' doesn't mean 'stronger' here—the B+ is known precisely for its accessible effects, making it suitable for a wide audience. That combination of impressive stature and mild profile has made it an enduring favourite.
The B+ develops caramel-coloured caps on thick, fleshy stems that feel substantial in the hand. The mushrooms can grow singly or in clusters. A practical bonus: this strain is remarkably tolerant. Temperature or humidity swings that would trouble other varieties barely faze the B+.
Impressive & Approachable: The B+ proves that size and gentleness go hand in hand. Large mushrooms with beginner-friendly effects—ideal for those who want visually striking results without overwhelming experiences.
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★ Creative Sparks During a B+ session, many users report that ideas flow more freely. Creative blocks seem to dissolve, giving way to a playful, curious state of mind. |
★ Uplifted Mood Laughter comes easily with the B+. Users describe a light, cheerful mood where small things bring pleasure. Heaviness seems to melt away. |
The kit comes with a substrate block in which the B+ mycelium has fully established itself. That robust network of fungal threads produces sturdy mushrooms. A grow bag with air filter and paperclips complete the package.
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★ Resilient Grower The B+ forgives small mistakes. Too warm, too cool, slightly too dry—where other strains stall, this one adapts. That makes the B+ particularly suited to those still learning. |
★ Multiple Flushes The B+ tolerates varying conditions without complaint, staying productive even when circumstances aren't perfect. |
1200cc StandardEven in the compact 1200cc format, the B+ shows what it can do. The mushrooms grow large regardless, making optimal use of the available space. First flush: 300-500 grams fresh 
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2100cc XLThe 2100cc XL gives the B+ extra room to reach its full potential. Expect substantial specimens and a more generous total yield. More substrate, higher total yield 
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The B+ follows the standard Cubensis cultivation process, but is known for impressively large mushrooms — specimens up to 30 cm are not uncommon, and it forgives minor growing mistakes with ease. Our step-by-step cultivation guide walks you through everything — from preparation to recognising the perfect harvest moment.
Our growing guide takes you through each step. The B+ loves to grow tall — make sure your grow bag has enough headroom so the mushrooms don't press against the plastic. Running into issues? Check the FAQ or reach out via WhatsApp — our team is ready to help you personally.
Video: using a heating mat
The B+ is mild but still deserves respect. Start modestly, especially your first time. A comfortable setting without time pressure helps you fully appreciate the experience.
In the box:
Specifications:
Please note: Do not combine with other substances. Not suitable for those with psychiatric conditions or during pregnancy. Ensure a safe setting and preferably have someone stay sober.
Grow kits are perishable and therefore excluded from returns. Should anything be wrong on arrival, please get in touch.
The B+ has earned its reputation as the go-to beginner strain for several practical reasons. It is exceptionally resilient and tolerates imperfect growing conditions that would stall more sensitive varieties. Temperature fluctuations, minor humidity variations, and small procedural errors rarely cause problems. The strain produces reliably across three to five flushes without requiring advanced techniques.
The B+ is among the largest Psilocybe Cubensis strains you can grow at home. Individual mushrooms regularly reach 20 to 30 centimetres in height, with thick, fleshy stems and broad caramel-coloured caps. Some exceptional specimens have been reported even taller. This impressive size does not indicate greater potency, however.
For a first experience with B+ mushrooms, a low dose of 10-15 grams fresh (or roughly 1-1.5 grams dried) is a sensible starting point. This allows you to gauge your personal sensitivity without risking an overwhelming session. A moderate dose of 20-25 grams fresh provides a fuller experience with noticeable visual enhancement and mood elevation. Our dosage calculator can help you determine a precise amount based on your body weight and desired intensity.
Both the B+ and Ecuadorian are forgiving, beginner-suitable Cubensis strains, but they offer distinct growing and experiential characteristics. The B+ produces noticeably larger mushrooms with thick stems and broad caps, while the Ecuadorian tends to develop more compact, dense fruit bodies with a slightly darker colouration. In cultivation, the Ecuadorian often colonises faster and can handle cooler temperatures somewhat better, making it popular in less controlled growing environments. In terms of effects, the B+ leans toward creative, upbeat experiences with light visuals, while the Ecuadorian is often described as more introspective and grounding with a warmer body sensation.
A well-maintained B+ grow kit typically delivers three to five flushes, with some growers reporting up to seven under ideal conditions. The first flush is usually the most abundant, producing 300-500 grams fresh from a 1200cc kit. Subsequent flushes tend to yield somewhat less, but the B+ is known for maintaining productivity longer than many other strains thanks to its robust mycelium network. Between each harvest, soak the substrate block in cold water for 12 hours to rehydrate it.
A B+ experience is typically characterised by warmth, creativity, and an uplifted mood. The onset is gradual, usually beginning 30-45 minutes after ingestion with a gentle sense of lightness. Visual effects are present but not dominant—colours appear more vivid, surfaces may shimmer, and there is often an enhanced appreciation for music and art. For tips on creating the right environment, read our guide to preparing a safe mushroom session.
Yes, the B+ is one of the most temperature-tolerant Cubensis strains and can fruit successfully without a heating mat, provided your room temperature stays between 20-25°C. This makes it a practical choice for growers in temperate climates or heated homes. However, if your growing space regularly drops below 20°C, especially at night, a heating mat placed underneath the kit can stabilise conditions and speed up colonisation. Avoid placing the mat on top or directly against the side of the kit, as localised overheating can dry out the substrate.
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