
Mushrooms are a type of fungus that can grow in a variety of environments, including on cow dung. While not all mushrooms grow on cow poop, one species that is commonly associated with this environment is Psilocybe cubensis, also known as 'magic mushrooms' due to their hallucinogenic properties. These mushrooms are often found in tropical and subtropical climates, where they thrive in the presence of cattle due to the ideal conditions provided by cow dung. The spores of P. cubensis can be ingested by cows as they graze on grass, and the fungus then germinates within the dung, leading to the growth of mushrooms.
| Characteristics | Values |
|---|---|
| Type of mushroom | Psilocybe cubensis |
| Other names | Shrooms, magic mushrooms, golden tops, cubes, gold caps |
| Mushroom cap colour | White, orange, green, brown |
| Mushroom stem colour | White, orange, green, brown |
| Mushroom gill colour | White, orange, green, brown |
| Mushroom growth period (Northern Hemisphere) | February to December |
| Mushroom growth period (Southern Hemisphere) | November to April |
| Ideal climate | Humid, tropical and subtropical |
| Ideal humidity | Over 85% |
| Ideal temperature | Not specified, but faster growth observed at higher humidities |
| Ideal substrate | Cow dung, sugar cane mulch, rich pasture soil, coconut husk fiber and vermiculite mixture |
| Ideal light conditions | Grown in the dark have higher levels of psilocybin and psilocin |
| Health benefits | Treatment of depression, eating disorders, spiritual benefits |
| Health risks | Poisoning, hallucinogenic effects lasting 1-8 hours |
| Treatment for poisoning | Benzodiazepines and cholinergic agents |
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What You'll Learn
- Psilocybe cubensis is the species of mushroom that grows on cow dung
- Cow dung is an ideal environment due to its low stomach acid content
- The dung's high nutrient content also makes it a great fertiliser for seedlings and fungi
- The mushrooms are often found near cattle, as the cows transfer spores to suitable habitats
- P. cubensis is also grown indoors, with spores inoculated within sterilised jars or bags

Psilocybe cubensis is the species of mushroom that grows on cow dung
Psilocybe cubensis, commonly known as "magic mushrooms", is a species of mushroom that grows on cow dung. It is a psychedelic mushroom whose principal active compounds are psilocybin and psilocin. This species of mushroom is often found near cattle due to the ideal conditions provided for the growth of the fungus. The cow usually consumes grass or grains covered with the spores of P. cubensis, and the fungus then germinates within the dung.
Psilocybe cubensis grows naturally in tropical and subtropical conditions and prefers humid climates. It can be found throughout South America and East Asia, or anywhere the humidity is over 85%. In the United States, this type of mushroom can be found year-round in the state of Florida and usually from May through September in the Gulf Coast states.
Psilocybe cubensis is intimately associated with cattle ranching and has found unique dispersal niches through its relationship with the cattle egret (Bubulcus ibis). The cattle egret typically walks alongside cattle, preying on insects, and tracks through spore-laden vegetation and cow dung. It then transfers the spores to suitable habitats, often thousands of miles away during migration. This type of spore dispersal is known as zoochory and enables the mushroom species to propagate over a much greater range than it could achieve on its own.
Psilocybe cubensis is relatively easy to cultivate indoors as well. Spores are inoculated within sterilized jars or bags containing a carbohydrate nutrient such as rye grains. After about a month, the spores fully colonize the grain spawn, forming dense mycelium, which is then planted within a bulk substrate. Given proper humidity, temperature, and fresh air exchange, the substrate will produce fruiting Psilocybe cubensis bodies within a month of planting.
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Cow dung is an ideal environment due to its low stomach acid content
Cow dung is an ideal environment for growing mushrooms due to its low stomach acid content. The digestive process of cows allows them to regurgitate and re-chew grass, known as cud, before it passes through their third and fourth stomachs, the omasum and abomasum, respectively. This process results in minimal stomach acid in cow patties, creating a conducive environment for mushroom spores to thrive.
The low acid content in cow dung ensures that the spores and seeds consumed by cows remain intact and viable for germination. As a result, mushrooms, particularly the species Psilocybe cubensis, can readily grow on cow dung. This species is commonly known as "magic mushrooms" or "golden tops" and is often associated with cattle ranching.
The preference for cow dung as a growth medium is not limited to Psilocybe cubensis alone. Other mushroom species, such as Panaeolus semiovatus and Conocybe Tenera, are also known to grow on cow dung. These mushrooms take advantage of the nutrient-rich and acidic environment provided by cow patties.
Additionally, the use of cow dung as a fertilizer in agriculture contributes to the growth of mushrooms. Cow manure is commonly used to enhance soil fertility, and mushrooms can benefit from the nutrients it provides. This practice further highlights the role of cow dung in creating favourable conditions for mushroom growth.
While cow dung serves as an ideal environment for mushroom growth, it is important to exercise caution when consuming wild mushrooms. The risk of bacterial contamination, such as E. coli, exists, and proper sterilization techniques should be employed to ensure safe consumption.
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The dung's high nutrient content also makes it a great fertiliser for seedlings and fungi
Cow dung is an excellent source of nutrients for plants, and it is also an ideal medium for growing specific types of mushrooms. The dung's high nutrient content makes it a great fertiliser for seedlings and fungi, which can often be found sprouting directly from cow pats. The seeds and spores that a cow consumes while grazing are not broken down by stomach acids, allowing them to pass through the cow's digestive system and emerge ready to grow.
The dung's nutrient-rich composition, combined with its low acidity, creates an ideal environment for certain fungi species to thrive. Among these is the Psilocybe cubensis mushroom, which is commonly associated with cow dung and is known for its hallucinogenic properties. This species is often found in tropical and subtropical climates, where it can take advantage of the warm, humid conditions provided by the dung.
The use of cow dung as a fertiliser is not limited to mushrooms. It is a common practice to use it to enhance the growth of various crops. In some regions, the most abundant magic mushrooms are found growing on cow dung, while in other areas, they may prefer wood or other organic matter.
While cow dung can be an effective growing medium, it is important to exercise caution when consuming mushrooms found in the wild. There is a risk of food poisoning from bacteria such as E. coli, which can be present in the dung and transferred to the mushrooms. Commercially grown mushrooms are typically cultivated in sterilised manure to mitigate this risk.
The high nutrient content of cow dung, combined with its low acidity, makes it a favourable environment for seedlings and fungi to flourish. The dung provides the essential elements needed for growth and development, contributing to the success of both natural and cultivated fungi species.
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The mushrooms are often found near cattle, as the cows transfer spores to suitable habitats
Mushrooms, specifically the Psilocybe cubensis species, are often found near cattle. This is because cows transfer spores to suitable habitats, providing ideal conditions for the growth of the fungus. Cows typically consume grass or grains covered with the spores of P. cubensis, and the spores remain intact as they pass through the cow's digestive system due to the low levels of stomach acid. The spores then exit the cow in its dung, where they can germinate and grow into mushrooms. This process is known as zoochory, a type of spore dispersal that allows the fungus to propagate over a much wider range than it could alone.
Psilocybe cubensis is a psychedelic mushroom species that grows in tropical and subtropical conditions. It is commonly found in South America, East Asia, and the State of Florida in the United States, typically in humid climates with humidity levels above 85%. In addition to cow dung, P. cubensis can also grow on sugar cane mulch or rich pasture soil.
The association between Psilocybe cubensis and cattle ranching has led to the fungus finding unique dispersal niches. For example, the cattle egret, which walks alongside cattle and preys on insects, tracks through spore-laden vegetation and cow dung. During migration, these birds can transfer spores to suitable habitats thousands of miles away.
While it is true that mushrooms can grow on cow dung, it is more common to find them growing in the wild where the soil is rich in nutrients, the humidity is high, and there is low wind. Additionally, when mushrooms grow on cow patties, there is a risk of contamination with bacteria such as E. coli, which can cause food poisoning if the mushrooms are consumed raw.
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P. cubensis is also grown indoors, with spores inoculated within sterilised jars or bags
Psilocybe cubensis, or 'magic mushrooms', are often found growing on cow dung in tropical and subtropical climates. The dung provides ideal conditions for the growth of the fungus. However, P. cubensis can also be cultivated indoors.
To grow P. cubensis indoors, spores are first inoculated within sterilised jars or bags, colloquially known as grain spawn. These containers should have small holes or filters to allow for gas exchange while maintaining sterility. Grain spawn contains a form of carbohydrate nutrient such as rye grains. After approximately one month, the spores fully colonise the grain spawn, forming dense mycelium. This process is critical as the mycelium forms the network that will eventually produce mushrooms. The ideal temperature range for colonisation is 75-80°F (24-27°C).
Once the colonisation is complete, the mycelium is then planted within a bulk substrate such as a coconut husk fibre and vermiculite mixture. Other substrates that can be used include coffee, brown rice flour, sawdust, and straw. Rye grain is said to be the most suitable substrate for growing P. cubensis. The substrate should be kept at room temperature or "cased" with soil. Given proper humidity, temperature, and fresh air exchange, the substrate will produce fruiting P. cubensis bodies within a month of planting. To maintain the necessary humidity levels during the fruiting stage, a spray bottle can be used.
To preserve potency after harvesting, growers often dehydrate the fruit and store them in airtight containers in cool, dark environments. Light can degrade the psychoactive compounds over time.
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Frequently asked questions
Yes, the Psilocybe cubensis species of mushroom is known to grow in cow dung.
Psilocybe cubensis grows in tropical and subtropical conditions, often near cattle. They can be found in South America, East Asia, and the Gulf Coast States in the United States.
Cow dung is a great source of nutrients for plants and fungi due to the lack of stomach acid in the feces. The seeds and spores that a cow eats while grazing pass through the cow undigested, allowing them to grow into mushrooms.
While some sources mention eating Psilocybe cubensis mushrooms, those found on cow patties in the wild may be contaminated with bacteria such as E. coli and cause food poisoning.

























