Black King Oyster: what do the growing supplies cost?
Black King Oyster supplies are sold in 3 product categories (grow kits & fruiting blocks, grain spawn, liquid culture) across 1 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.
Grow kits & fruiting blocks
| Vendor | Listing | Per kit | Listing price | Stock | |
|---|---|---|---|---|---|
| North Spore | Organic Black King Mushroom Grow Kit Fruiting Block — 8-Pack (8 kits) | $18.00 | $144.00 | in stock | view → |
Price history — grow kits & fruiting blocks (daily median)
This chart is just getting started — we add a new point every day, so check back as the history builds.
Grain spawn
| Vendor | Listing | Per bag | Listing price | Stock | |
|---|---|---|---|---|---|
| North Spore | Organic Black King Mushroom Grain Spawn | $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 | |
|---|---|---|---|---|---|
| North Spore | Organic Black King 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.
We check Black King Oyster supply prices at every vendor we track, every day. How the index works · All categories · All tracked species