Reishi Grain Spawn
This species generates beautiful, large red caps with long stems. A high yield can be harvested from this mushroom. It's medicinal properties are it's key features. Mushroom bodies may last up to 7 days after harvest in the fridge. Usually they are dried to prolong shelf life to over a year (must be stored in a dry container).
Grain spawn is to be inoculated onto a suitable substrate and we advise inoculating onto a recommended substrate as described in the 'Cultivation Information' section of this page. The substrate is not included.
Our grain formula contains the optimum levels of nitrogen required for quick growth of mycelium as well as a high number of inoculation points. Weights of bags are approximated.
We aim to have all our grain spawn ready to dispatch whenever there is an order, but because it is a live mycelium sometimes dispatch may take longer. We will get in touch if this is the case.
As grain spawn is usually used by those with prior experience, we do not include any instructions with it. If you require any guidance on how to utilise the spawn, please contact us.
Note: We break all of our grain spawn before shipping for your convenience. The grain is fully colonised and can be used as soon as you receive it. The described information has been tested thoroughly and the optimum conditions have been listed. Because of this, results may vary if the appropriate conditions are not met.
Storage: We recommend using the grain spawn as soon as you receive it, however, if you need to store it for a longer period of time, store at 2 °C for up to 1 month.
Cultivation Information
Species: Ganoderma lucidum
Recommended substrate: 80% Hardwood, 20% Bran or similar
Fruiting duration: 10-12 weeks
Yield: Approx. 150-200g of fresh mushrooms per kg of our recommended wet substrate (1st flush); pre-inoculation
Inoculation % of wet substrate: 2-10%; higher inoculation % leads to a shorter incubation period. Do not exceed 10%.
Incubation Conditions
Room temperature: 22-24 °C
Substrate temperature: 24-26 °C
Duration: 16-20 days
Ripening duration: 30-50 days
Fruiting Conditions
Induction: Increase temperature to 18-24 °C @ 90-95% RH
Optimum room conditions: 10-25 °C @ 80-90% RH
Carbon dioxide concentration: <2000ppm
Light levels: <1000 lux
Flushes: 3-4 flushes @ 3-4 weeks interval with 85% RH in between flushes
Bulk Orders
Below are the discounts we can offer for different quantities of grain spawn:
Quantity Discount 4-7 10% 8-19 20% 20+ 30% Discounts are applied per order and grain spawn varieties can be mixed.
If you wish to purchase a large quantity of grain spawn to take advantage of our discounts, please contact us.
Delivery Information
Please read the delivery information here to find information regarding dispatch times and more.
