How Long Do Mushroom

As a mushroom growing enthusiast, I often get asked the question: “How long do mushrooms take to grow?” The answer to this question varies depending on the type of mushroom, the growing conditions, and the specific growing method used. Let’s dive into the intricate world of mushroom growth and explore the fascinating journey from spore to harvest.

Understanding the Mushroom Growth Cycle

Before delving into the duration of mushroom growth, it’s crucial to understand the growth cycle of mushrooms. The process begins with spores, which are similar to seeds in plants. These spores require a suitable environment to germinate and form mycelium, the vegetative part of the fungus. The mycelium then develops into the fruiting body we recognize as a mushroom. This growth cycle can be broken down into specific stages, each with its own time frame.

Germination and Mycelium Growth

Upon inoculation of the growing medium with mushroom spores, the germination process starts. This stage typically takes 7 to 14 days for the mycelium to become visible as white, thread-like strands spreading through the substrate. Factors such as temperature, humidity, and substrate composition can influence the duration of this stage.

Pinhead Formation

Once the mycelium has fully colonized the growing medium, small pin-like protrusions, known as pinheads, begin to form. This stage can take anywhere from 5 to 10 days, during which the pinheads develop into primordia, the initial stage of the mushroom’s fruiting body formation.

Mushroom Development and Harvest

Following the formation of pinheads, the mushroom caps start to expand, and the fruiting bodies continue to mature. Depending on the mushroom species, this stage typically lasts between 3 to 7 days before the mushrooms are ready for harvest.

Factors Affecting Mushroom Growth Duration

Several factors play a significant role in determining the duration of mushroom growth. Temperature, humidity, light exposure, air exchange, and the quality of the growing substrate all impact the speed at which mushrooms develop. Additionally, different mushroom species have varying growth requirements and timelines.

Cultivation Methods and Timeframes

The duration of mushroom growth can also be influenced by the chosen cultivation method. For example, growing mushrooms using a mushroom kit may have a different timeframe compared to cultivating mushrooms using the traditional spawn and substrate method or through outdoor mushroom patches.


In conclusion, the time it takes for mushrooms to grow from spore to harvest is a multifaceted process influenced by numerous variables. Understanding the intricacies of the mushroom growth cycle and the factors impacting growth duration is essential for successful cultivation. Whether you’re a novice or experienced mushroom grower, patience and attention to detail are key when embarking on the rewarding journey of growing your own mushrooms.