Description
Whitebilly (an advanced leucistic variant of Hillbilly, also known as Whitebelly in some catalogs) is a stabilized strain developed by Full Canopy Genetics in Denver, Colorado (USA). It stands out for its exceptional vigor and heavy production in grow bags, forming part of their award-winning, ultra-fast-growing genetics. Its extremely fast rhizomorphic mycelium produces robust fruiting bodies: thick, dense ivory-white stems (often bulkier than the caps), semi-spherical caps in honey-amber tones with a slightly pleated margin and a characteristic pumpkin-like shape. It excels in dense, synchronized, and highly prolific flushes, with minimal condensation and maximum production volume per bag, making it ideal for those seeking the highest possible yields.
Estimated yield
MycoBag (1200 g / 2000 ml): 400–600 g of fresh mushrooms (~10% dry weight)
MiniMycoBag (400 g / 700 ml): 150–200 g of fresh mushrooms (~10% dry weight)
Plug & Play system
MycoBag Plug & Play represents a revolution compared to traditional methods such as tubs or monotubs. It completely eliminates manual sterilization, syringe inoculation, substrate mixing, frequent misting, controlled ventilation, and constant openings that increase the risk of contamination. This is an all-in-one, pre-colonized kit, laboratory-sterilized and hermetically sealed with a microporous filter that optimally regulates oxygen and CO₂ levels. Simply place the bag in a suitable environment (~23 °C, no direct light) and the entire cycle—colonization and fruiting—will develop autonomously, without opening, watering, or handling the bag until harvest. The result: fewer errors, faster cycles, and consistent, high-quality harvests.
Approximate timelines
First visible pins: a few days after proper placement (generally 10–20 days).
First flush harvest: 25–35 total days from bag placement.
Ideal time to harvest
Harvest immediately after the veil breaks (when the partial veil detaches from the cap and leaves a visible ring on the stem). This is when mushrooms reach their maximum size, best appearance, and optimal texture, before the massive release of spores begins.
Regardless of the time elapsed—since the 25–35 days are only indicative and may vary slightly depending on environmental conditions, specific genetics, and the individual response of each bag—always prioritize visual observation over the calendar.
Full Canopy Genetics
Full Canopy Genetics is a mycological research laboratory based in Denver, Colorado (USA), specializing in the isolation, testing, and stabilization of premium genetics under low-oxygen and high-CO₂ conditions—exactly the same conditions found in sealed grow bags. Their rigorous scientific approach has earned them multiple first-place awards in prestigious competitions such as The Cultivar Cup and the Colorado Psychedelic Cup, standing out for exceptional fruiting body size, uniformity, and consistent yields. MycoBag is the exclusive distributor of these award-winning genetics in Europe, ensuring direct access to strains optimized specifically for the Plug & Play system.
Useful tips
- Place the bag in a location without direct sunlight (dim indirect light is ideal; avoid direct heat sources such as radiators or heaters).
- Maintain a stable ambient temperature around 23 °C (avoid sudden changes or prolonged heat exposure).
- Do not open, water, or handle the bag at any time before harvest.
- Observe development visually without moving or shaking the bag.
- Harvest right after veil break for the best presentation and storage quality.
Shipping and conditions
Fast and discreet shipping: 24–48 hours within mainland Spain (business days). Europe: 3–5 business days.
Free shipping on orders over €50. Neutral packaging and protection against impact and temperature to ensure product integrity.




Chloé –
Très belle récolte et champignons massifs merci!!
Sam –
honestly the best flush ive ever had in my life lol. huge thick caps and super fast shipping too. 10/10 gonna buy again fr
Hugo –
Una locura de cosecha la verdad, súper facilísimo y el viaje fue súper top y suave.
Matteo –
Raccolto gigante e super potente grazie mille
Mia –
The visuales were totally wow!! yielded way more than expected from such a compact setup.
Lukas –
Einfach perfekt alles super gelaufen.
Leo –
Franchement incroyable la quantité que j’ai eu. super simple a faire pousser meme pour un noob
Jake –
Bro this bag is literally insane… zero contamination and I pulled so much weight on the first go. highly recommend if ur starting out tbh