Description

Bulk Elm Oyster Mushroom Fruiting Block – 25–1000 Unit Packs

Need reliable Elm Oyster mushroom yields at volume without babysitting colonisation? Our 3kg, ready-to-fruit Elm Oyster (Hypsizygus ulmarius) fruiting blocks are made in the UK and supplied in bulk packs from 25 to 1000 units - ideal for commercial rooms, scaling growers, and retailers who want consistent stock.

Every block is built on a nutrient-dense substrate and produced with lab-grade process control, backed by our Lifetime Guarantee for total risk reversal.

Choose from 25, 50, 100, 250, 500 or 1000 unit packs for commercial consistency and better unit economics.

Need trade support, custom scheduling, or a tailored quote? Contact us and we’ll build a supply plan around your volume.

Wholesale‑Ready Elm Oyster Fruiting Blocks

This is a pre-colonised 3kg Elm Oyster fruiting block designed to go straight into fruiting conditions - no inoculation step required. It’s capable of producing 1kg+ fresh Elm Oyster mushrooms across multiple flushes when conditions are dialled in.

Ideal for

• Commercial farms and scaling growers who rely on consistent cycle times and repeatable results
• High-volume hobby growers who want access to wholesale pricing without complicated sourcing
• Retailers and resellers looking for a reliable, high-performing Elm Oyster fruiting blocks

Not a Bulk Buyer?

This page is for trade, wholesale, and high‑volume growers ordering 25–1000+ units.

If you’re a hobby grower or want to trial smaller quantities first, use our standard (non‑bulk) listing here.

Key Advantages

• Direct from the source - You get the best price. It's all about direct supply from a top UK mushroom supplier.
• Scale whenever you’re ready - Need 25 now or 1,000+ regularly? We’ve got you covered year-round.
• Rapid fruiting start - Fully colonised and ready to go, so you can move straight to fruiting and see Elm Oysters mushrooms develop sooner with no waiting around.
• Clean, commercial-grade sterility - Each batch is sterilised for 2.5 hours at 121°C in a computer-controlled autoclave at our Kent facility, giving you a contamination-free grows.
• Perfectly balanced moisture - Grain and hardwood blend substrate is hydrated just right to encourage healthy, vigorous growth without inviting bacteria.
• High-quality filtration - 0.2-micron filter patches let the bags breathe while helping keep contaminants out - so you get more consistent results.

What You Get

• Bulk packs 25–1000 to match your production runs
• 3kg Ready-to-Fruit Elm Oyster Block - standardised for consistent runs and simple SOPs.
• Supplemented hardwood blend, hydrated for consistent fruiting
• Cleanroom-prepped and ready to fruit on arrival
• Sterilised in a computer-controlled autoclave (2.5 hrs @ 121°C)
• Lifetime Guarantee (we stand behind every bag)
• Free UK delivery on £50+ orders helps protect margins
• Pay in 3 interest-free instalments available at checkout

Built For

Product Sellers (retailers, resellers, garden centres)

• Building ready-to-fruit Elm Oyster blocks with consistent, repeatable quality.
• Offering case quantities for serious growers
• Improving customer outcomes with fully colonised, ready-to-fruit Elm Oyster blocks and guarantee

Growers (commercial & high-volume)

• Routine fruiting runs with consistent, clean performance
• Fruiting workflows (tent, tubs, or fruiting bags) from cut-to-harvest
• Faster SOPs: no soaking/cooking/sterilising on your end

Perfect For

• Fruiting Elm Oyster mushrooms with minimal prep
• Consistent first flushes when you need a reliable, ready-to-go block (no grain-to-bulk step required)
• Staggered harvest cycles - ideal for repeatable scheduling when running multiple blocks (timelines vary by conditions and strain/culture)

What’s Included

• 3kg fully colonised Elm Oyster fruiting block
• Lifetime Guarantee coverage

Not included: spore or liquid culture syringe.

How It Works

1. Sanitise your workspace and wipe the bag around the fruiting area.
2. Cut a small “X” or slit on the front of the bag where you want Elm Oyster mushrooms to form.
3. Place the block in a humid fruiting environment with fresh air exchange and indirect light.
4. Fruit and harvest:

• • For tent/Martha-style fruiting: maintain high humidity + regular fresh air exchange for clean, dense growth
  • For bag/dome fruiting in a smaller space: keep a humid microclimate, vent daily for fresh air, and harvest when the fruits are mature

Quality Guarantee

At Martian Mushrooms, we don't just sell supplies; we use them.

Every batch is produced with lab-first discipline: grain + hardwood blend substrate is soaked/cooked, hydrated to field capacity, and sterilised in a computer-controlled steam autoclave for 2.5 hours at 121°C.

If something goes wrong, you’re protected by our Lifetime Guarantee - built for growers who can’t afford downtime.

Technical Specifications

Martian Mushrooms vs. Competitors

Don’t let prep work slow you down. Secure your supply with reliably consistent, ready-to-fruit Elm Oyster blocks.

Need a custom quote, white labelling, or pallet pricing (100+ units)?

Join our Growth Partner Program.