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Button Mushroom Spawn

Strain: Agaricus bisporus

From £15.99 Inc. VAT

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1 hour Q+A Webinar add on

Boost your kit or spawn purchase by booking a spot on one of our Q+A webinars, hosted by our mushroom growing course tutor Scribe! Covering aspects of hobbyist mushroom growing, this extra experience is sure to add special value to a gift for yourself or a loved one! By purchasing any kit or hobbyist spawn product you are automatically getting 50% off a spot in the webinar!

  • Seminars *

    Seminar 09/05/23 – 7pm + £9.00
    Seminar 11/04/23 – 7pm + £9.00
    Seminar 13/06/2023 – 7pm + £9.00

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Product Overview

Product Overview

A familiar sight to supermarket shelves, this strain of button mushroom spawn promises small, white capped and large harvests. By growing it to sell or have at home, you can help create a more sustainable food source that cuts out the need for supermarket plastic waste and carbon footprints. 

Our fresh living spawn is double-tested and axenic, meaning that it is free from all other competing species. So from the moment your delivery arrives, you can grow a guaranteed crop of button mushrooms. 

  • Suitable for hobbyists or professionals
  • A perfect venture for those looking at growing edible mushrooms 
  • Naturally contain high levels of Vitamin D
  • Great way to reduce your supermarket waste

Please read below for more species and grow information, specifications, and video.

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Product Description

The White Button Mushroom has a very gentle, classic ‘mushroom’ flavour. The small caps mean you can get a lot of fruit from not a lot of space. It is easy to grow on a traditional substrate such as straw or straw pellets but can also thrive on more unusual substrates such as coffee grounds. All of these versatile qualities help demonstrate what a good grow this is if you are making a foray into the world of edible mushroom growing on a larger scale and want to start experimenting with what is good. 

All of our spawn is stored in specialist breathable Microsac bags. This means that the spawn is always at its freshest, from our fridges to yours. It also boasts a very low generational count. The lower the generation of the spawn, the nearer to the original spore sample, so at only the fourth generation, this spawn is guaranteed to be both high-quality and dependable.


For larger quantities, check out our wholesale collection


More Information

Grow Time: 3-5 weeks

Growing Temperature: 17-21oC

Cultivation Info

Binomial nameAgaricus bisporus
Old nomenclatureNone
Inoculation rate8-10 litre spawn / ton
Natural substratetraditional or synthetic Agaricus-compost
Incubationcompost temperature:23-27 °C
duration:13-17 days
CO2-concentration:5000-12000 ppm
Primordia induction(night time)* temperature:20-21 °C
air temperature:17-18 °C
relative humidity:90-95 %
CO2-concentration:1000-1200 ppm
Fruiting conditionstemperature:
air temperature:
Flushesnumber:2 to 5
between flushes:
Total production cyclefrom the end of incubation: 5 to 11 weeks
Average yield30 to 35 kg/ m² at a fill weight of 90 kg/ m² fully grown compost

*Primordia are induced by a shock. For most mushroom species, this is done with a thermal shock, which is defined by the minimum temperature during the day-night cycle.

Important remark: the cultivation guidelines in our technical data sheets are a compilation of the data given to us by experienced cultivators. Individual differences in the cultivation conditions can seriously affect the results.

Additional information

Weight0.075 kg
Package Size

1L (approx. 600g), 5L (approx. 3kg)

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Customer Photos

Hand holding home grown mushrooms pink mushroom kit growing out of a box for valentines

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