Elm Oyster: what do the growing supplies cost?
Elm Oyster supplies are sold in 3 product categories (grain spawn, liquid culture, agar & lab) across 2 US vendors — 5 listings tracked, 5 in stock, updated July 21, 2026. Prices below are grouped by category because a grow kit, a bag of spawn and a culture syringe are different products; comparing them against each other would be misleading.
Grain spawn
| Vendor | Listing | Per bag | Listing price | Stock | |
|---|---|---|---|---|---|
| North Spore | Organic Specialty Strain Grain Spawn — Popham Elm Oyster (Pleurotus ostreatus) | $29.99 | $29.99 | in stock | view → |
Price history — grain spawn (daily median)
This chart is just getting started — we add a new point every day, so check back as the history builds.
Liquid culture
| Vendor | Listing | Per syringe | Listing price | Stock | |
|---|---|---|---|---|---|
| Out-Grow | Elm Oyster (Hypsizygus ulmarius) Liquid Culture Syringe | $12.36 | $12.36 | in stock | view → |
| North Spore | Organic Elm Oyster Mushroom Liquid Culture Syringe | $19.99 | $19.99 | in stock | view → |
Price history — liquid culture (daily median)
This chart is just getting started — we add a new point every day, so check back as the history builds.
Agar & lab
| Vendor | Listing | Per plate | Listing price | Stock | |
|---|---|---|---|---|---|
| Out-Grow | Elm Oyster (Hypsizygus ulmarius) Mushroom Plate Culture | $25.70 | $25.70 | in stock | view → |
| North Spore | Elm Oyster Mushroom Plate Culture — NSPO2 - Popham Elm Oyster (Pleurotus ostreatus) | $74.99 | $74.99 | in stock | view → |
Price history — agar & lab (daily median)
This chart is just getting started — we add a new point every day, so check back as the history builds.
We check Elm Oyster supply prices at every vendor we track, every day. How the index works · All categories · All tracked species