Our substrates are produced FRESH for you, so the production time is approximately 3 - 6 weeks.
Organic Elm Oyster Mushroom - H. ulmarius - Sawdust Spawn
for organic mushroom cultivation
Quantity discount:
from 3 pcs.
from 6 pcs.
from 30 pcs.
from 100 pcs.
Organic Elm Oyster- Hypsizygus ulmarius - Sawdust-Spawn
Synonyms: Shirotamogitake, Da Yu Mo
The Elm Oyster mushroom is a relatively rare mushroom, which usually grows singly or in small groups on elms and beech. The Hypzisigus ulmarius closely parallels the morphology of an Oyster mushroom but has more depth in flavour and texture. This mushroom can become quite large (4 - 15cm).The Elm Oyster is a delicious edible mushroom that can be used like other Oyster mushrooms. On the market this mushroom is often incorrectly sold as 'Oyster mushroom' but it produces larger fruit bodies than other Oyster mushroom. The colour of the fruiting bodies is white to light grey or light brown, depending on substrate and habitat.
This fresh product is prepared fresh for you to order. The production time is around 3 - 6 weeks.
The mushroom spawn should be processed immediately after delivery.
If the product cannot be used immediately, it can be stored in the refrigerator at 4 °C for up to 2 weeks.
We recommend that you plan for this when ordering and making your preparations.
Suitable cultivation methods:
wood logs,
mushroom patch, spawn bags for indoor greenhouse,
straw bales
Suitable substrates: straw, paper, ground coffee, pulp of coffee beans, hardwood
Suitable woods: maple, birch, beech, oak, alder, ash, aspen, poplar, elm and willow
Outdoors: this strain produces fruiting bodies in summer
You receive fully colonised sawdust spawn based on organic raw materials (wood, rye bran from organic cultivation) in bags specifically suitable for sterilisation.
Information for cultivation on straw and substrate:
1 autoclave bag with app. 3 litres of mushroom spawn is suitable for inoculating 1 straw bale or 5 - 15 substrate bags
1 autoclave bag with app. 6 litres of mushroom spawn is suitable for inoculating 2 straw bales or 10 - 30 substrate bags
Information for cultivation on wood:
When using our equipment (inoculation stick or hand inoculator.) the sawdust spawn bags are suitable for:
1 autoclave bag with app. 3 litres of mushroom spawn is suitable for inoculating 12 - 15 linear metres of wood
1 autoclave bag with app. 6 litres of mushroom spawn is suitable for inoculating 25 - 30 linear metres of wood.
For quantities of 10 logs or more, inoculating with sawdust spawn ins usually more efficient than working with spawn dowels. The raw materials sawdust and wood chips are by-products and therefore more cost effective and sustainable than specially manufactured wooden dowels. As a result, sawdust spawn can also be produced cost-effectively in large quantities. Sawdust spawn is suitable for the drilling method and the cut inoculation method.
The expected yield is up to 10% of the fresh wood weight, divided into several harvest waves over a period of 3 - 5 years.
When utilising the drilling method we recommend using a mushroom drill and an inoculation stick or a hand inoculator.
Suitable for beginners.
Large quantities for commercial mushroom cultivation available upon request.
Taxonomy:
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Thricholomataceae
Genus: Hypzisigus
Species: Hypzisigus ulmarius
Spores: white, round to ovoid, diameters 3-5µ
Growing conditions:
Phase 1: Mycelial growth
Temperature: 21 - 27°C
Humidity: 95 - 100%
Duration: 14 - 21 days, plus 7 day resting
CO2: >10,000 ppm
Fresh air exchange: 0 - 1 per hour
Light: n/a
Phase 2: Primordia formation / Fruiting initiation
Temperature: 10 - 13°C
Humidity: 98 - 100%
Duration: 5 - 10 days
CO2: <1,000 ppm
Fresh air exchange: 4 - 8 per hour
Light: 500 - 1,000 lux
Phase 3: Fruiting and Harvest
Temperature: 13 - 18°C
Humidity: (90) 94 - 98%
Duration: 4 - 7 days
CO2: 600 - 1,500 ppm
Fresh air exchange: 4 - 8 per hour
Light: 500 - 1,000 lux
Harvesting cycle: 2 crops, 7 - 10 days apart
