White Elm Oyster Mushroom Grain Spawn

Strain: Pleurotus Ostreatus var. florida

From £6.99 Inc. VAT

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Product Overview

This White Elm Oyster Mushroom spawn pack contains high quality, fresh living mushroom grain spawn ready for inoculation at home. 

Using our spawn, it is extremely easy to grow mushrooms all the way to fruit or use it to start your own mother culture.

Our strains are specifically selected for their high yield, vibrant colours and strong flavours. Boasting an incredibly low generation number, this laboratory-grade grain spawn can’t be matched in terms of quality and reliability.

  • First harvest in as little as 3 weeks
  • Suitable for returning customers/avid urban growers
  • Capable of producing up to 5 big harvests

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

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Product Description

White Elm Oyster Mushrooms are a North American variety with a strong woody flavour and are an excellent addition to any soup or stir fry.

Our spawn is stored in optimum conditions using specialist breathable bags. This means that the organism is always at its healthiest and ready for inoculation.

For larger quantities check out out wholesale collection.

  • The ideal growing conditions for white elm oyster mushrooms are: 13-20 C
  • We recommend a storage temperature of no higher than 5 C
  • First harvest: 3-5 weeks
  • Typically harvest <1.5kg over 3-5 flushes
  • Strain: Pleurotus ostreatus var. florida

Commonly used substrates:

  • Straw from cereal crops such as wheat
  • Coffee grounds
  • Hardwood logs and chips
  • Cardboard and paper
  • Fresh compost heaps containing an abundance of un-broken down organic material

Cultivation Info

Mushroom production

Binomial nomenclaturePleurotus ostreatus var. Florida
Old nomenclatureNone
Inoculation ratemix with ± 2% spawn
Natural substratehardwood / (wheat) straw
Incubationroom temperature:20-22 °C
substrate temperature:25-30 °C
duration:12-14 days
Primordia induction(night time)* temperature:lower to 6-15 °C
relative humidity:90- 95 %
Fruiting conditionsroom temperature:(11) 13-20 (28)°C
relative humidity:85%
CO2-concentration:less than 1000 ppm
light:800- 1500 lux
Flushesnumber:2-3
interval:8-10 days
between flushes:relative humidity increase to 90-95%%
Total production cycleCa. 3 months
Average yield200 to 250 g saleable mushrooms per kg fresh substrate†

*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.

†Mushroom weight immediately after harvesting, and wetted substrate weight prior to inoculation.

Important remark: these 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

100ml (60g), 1L (600g), 5L (3KG)

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Customer Photos

Hand holding home grown mushrooms Small child growing mushrooms at home

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