Paddy Straw: what do the growing supplies cost?
Paddy Straw supplies are sold in 3 product categories (liquid culture, agar & lab, substrate & amendments) across 1 US vendors — 5 listings tracked, 5 in stock, updated July 20, 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.
Liquid culture
| Vendor | Listing | Per syringe | Listing price | Stock | |
|---|---|---|---|---|---|
| Out-Grow | Silky Rosegill (Volvariella bombycina) Liquid Culture Syringe | $12.36 | $12.36 | 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 | Paddy Straw (Volvariella Volvacea) Mushroom Plate Culture | $25.70 | $25.70 | 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.
Substrate & amendments
| Vendor | Listing | Per bag | Listing price | Stock | |
|---|---|---|---|---|---|
| Out-Grow | 50/50 Horse Manure and Straw Mushroom Substrate (5lb Bag) | $19.52 | $19.52 | in stock | view → |
Price history — substrate & amendments (daily median)
This chart is just getting started — we add a new point every day, so check back as the history builds.
We check Paddy Straw supply prices at every vendor we track, every day. How the index works · All categories · All tracked species