MushroomPriceIndex

Blue Oyster: what do the growing supplies cost?

Blue Oyster supplies are sold in 7 product categories (grow kits & fruiting blocks, grain spawn, sawdust spawn, plug spawn, spawn (medium not stated), liquid culture, agar & lab) across 2 US vendors — 43 listings tracked, 40 in stock, updated October 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.

Grow kits & fruiting blocks

Cheapest today
$18.00/kit
Median
$34.99/kit
Highest today
$69.99/kit
In stock now
9
VendorListing Per kitListing price Stock
North Spore Blue Oyster 'Plant & Grow' Mushroom Starter Block — 8-Pack (8 kits) $18.00 $144.00 in stock view →

Price history — grow kits & fruiting blocks (daily median)

$26.36$30.99$35.63Jul 20: $29.99Jul 21: $29.99Jul 22: $29.99Jul 23: $29.99Jul 24: $29.99Jul 25: $29.99Jul 26: $29.99Jul 27: $29.99Jul 28: $29.99Jul 29: $29.99Jul 30: $29.99Jul 31: $29.99Aug 1: $29.99Aug 2: $29.99Aug 3: $29.99Aug 4: $29.99Aug 5: $29.99Aug 7: $29.99Aug 8: $29.99Aug 9: $29.99Aug 10: $29.99Aug 11: $29.99Aug 12: $29.99Aug 13: $29.99Aug 14: $29.99Aug 15: $29.99Aug 16: $29.99Aug 17: $29.99Aug 18: $29.99Aug 19: $29.99Aug 20: $29.99Aug 21: $29.99Aug 22: $29.99Aug 23: $29.99Aug 24: $29.99Aug 25: $29.99Aug 26: $29.99Aug 27: $29.99Aug 28: $29.99Aug 29: $29.99Aug 30: $29.99Aug 31: $29.99Sep 1: $29.99Sep 2: $29.99Sep 3: $29.99Sep 4: $29.99Sep 5: $29.99Sep 6: $29.99Sep 7: $29.99Sep 8: $29.99Sep 9: $29.99Sep 10: $29.99Sep 11: $29.99Sep 12: $29.99Sep 13: $29.99Sep 14: $29.99Sep 15: $26.99Sep 16: $26.99Sep 17: $26.99Sep 18: $26.99Sep 19: $26.99Sep 20: $26.99Sep 21: $26.99Sep 22: $26.99Sep 23: $26.99Sep 24: $26.99Sep 25: $29.99Sep 26: $29.99Sep 27: $29.99Sep 28: $29.87Sep 29: $34.99Sep 30: $34.99Oct 1: $34.99Oct 2: $34.99Oct 3: $34.99Oct 4: $34.99Oct 5: $34.99Oct 6: $34.99Oct 7: $34.99Oct 8: $34.99Oct 9: $34.99Oct 10: $34.99Oct 11: $34.99Oct 12: $34.99Oct 13: $34.99Oct 14: $34.99Oct 15: $34.99Oct 16: $34.99Oct 17: $34.99Oct 18: $34.99Oct 19: $34.99Oct 20: $34.99Jul 20Oct 20

Grain spawn

Cheapest today
$34.99/bag
Median
$34.99/bag
Highest today
$34.99/bag
In stock now
2
VendorListing Per bagListing price Stock
North Spore Organic Specialty Strain Grain Spawn — King Blue Oyster (Pleurotus ostreatus) $34.99 $34.99 in stock view →

Price history — grain spawn (daily median)

$29.59$32.49$35.39Jul 20: $29.99Jul 21: $29.99Jul 22: $29.99Jul 23: $29.99Jul 24: $29.99Jul 25: $29.99Jul 26: $29.99Jul 27: $29.99Jul 28: $29.99Jul 29: $29.99Jul 30: $29.99Jul 31: $29.99Aug 1: $29.99Aug 2: $29.99Aug 3: $29.99Aug 4: $29.99Aug 5: $29.99Aug 7: $29.99Aug 8: $29.99Aug 9: $29.99Aug 10: $29.99Aug 11: $29.99Aug 12: $29.99Aug 13: $29.99Aug 14: $29.99Aug 15: $29.99Aug 16: $29.99Aug 17: $29.99Aug 18: $29.99Aug 19: $29.99Aug 20: $29.99Aug 21: $29.99Aug 22: $29.99Aug 23: $29.99Aug 24: $29.99Aug 25: $29.99Aug 26: $29.99Aug 27: $29.99Aug 28: $29.99Aug 29: $29.99Aug 30: $29.99Aug 31: $29.99Sep 1: $29.99Sep 2: $29.99Sep 3: $29.99Sep 4: $29.99Sep 5: $29.99Sep 6: $29.99Sep 7: $29.99Sep 8: $29.99Sep 9: $29.99Sep 10: $29.99Sep 11: $29.99Sep 12: $29.99Sep 13: $29.99Sep 14: $29.99Sep 15: $29.99Sep 16: $29.99Sep 17: $29.99Sep 18: $29.99Sep 19: $29.99Sep 20: $29.99Sep 21: $29.99Sep 22: $29.99Sep 23: $29.99Sep 24: $29.99Sep 25: $29.99Sep 26: $29.99Sep 27: $29.99Sep 28: $34.99Sep 29: $34.99Sep 30: $34.99Oct 1: $34.99Oct 2: $34.99Oct 3: $34.99Oct 4: $34.99Oct 5: $34.99Oct 6: $34.99Oct 7: $34.99Oct 8: $34.99Oct 9: $34.99Oct 10: $34.99Oct 11: $34.99Oct 12: $34.99Oct 13: $34.99Oct 14: $34.99Oct 15: $34.99Oct 16: $34.99Oct 17: $34.99Oct 18: $34.99Oct 19: $34.99Oct 20: $34.99Jul 20Oct 20

Sawdust spawn

Cheapest today
$34.99/bag
Median
$34.99/bag
Highest today
$34.99/bag
In stock now
0
VendorListing Per bagListing price Stock
North Spore Organic Blue Oyster Mushroom Sawdust Spawn $34.99 $34.99 out of stock view →

Price history — sawdust spawn (daily median)

$29.59$32.49$35.39Jul 20: $29.99Jul 21: $29.99Jul 22: $29.99Jul 23: $29.99Jul 24: $29.99Jul 25: $29.99Jul 26: $29.99Jul 27: $29.99Jul 28: $29.99Jul 29: $29.99Jul 30: $29.99Jul 31: $29.99Aug 1: $29.99Aug 2: $29.99Aug 3: $29.99Aug 4: $29.99Aug 5: $29.99Aug 7: $29.99Aug 8: $29.99Aug 9: $29.99Aug 10: $29.99Aug 11: $29.99Aug 12: $29.99Aug 13: $29.99Aug 14: $29.99Aug 15: $29.99Aug 16: $29.99Aug 17: $29.99Aug 18: $29.99Aug 19: $29.99Aug 20: $29.99Aug 21: $29.99Aug 22: $29.99Aug 23: $29.99Aug 24: $29.99Aug 25: $29.99Aug 26: $29.99Aug 27: $29.99Aug 28: $29.99Aug 29: $29.99Aug 30: $29.99Aug 31: $29.99Sep 1: $29.99Sep 2: $29.99Sep 3: $29.99Sep 4: $29.99Sep 5: $29.99Sep 6: $29.99Sep 7: $29.99Sep 8: $29.99Sep 9: $29.99Sep 10: $29.99Sep 11: $29.99Sep 12: $29.99Sep 13: $29.99Sep 14: $29.99Sep 15: $29.99Sep 16: $29.99Sep 17: $29.99Sep 18: $29.99Sep 19: $29.99Sep 20: $29.99Sep 21: $29.99Sep 22: $29.99Sep 23: $29.99Sep 24: $29.99Sep 25: $29.99Sep 26: $29.99Sep 27: $29.99Sep 28: $34.99Sep 29: $34.99Sep 30: $34.99Oct 1: $34.99Oct 2: $34.99Oct 3: $34.99Oct 4: $34.99Oct 5: $34.99Oct 6: $34.99Oct 7: $34.99Oct 8: $34.99Oct 9: $34.99Oct 10: $34.99Oct 11: $34.99Oct 12: $34.99Oct 13: $34.99Oct 14: $34.99Oct 15: $34.99Oct 16: $34.99Oct 17: $34.99Oct 18: $34.99Oct 19: $34.99Oct 20: $34.99Jul 20Oct 20

Plug spawn

Cheapest today
$0.08/plug
Median
$0.22/plug
Highest today
$49.99/plug
In stock now
3
VendorListing Per plugListing price Stock
North Spore Organic Blue Oyster Mushroom Plug Spawn — 500 plugs (500 plugs) $0.08 $39.99 in stock view →

Price history — plug spawn (daily median)

$0.13$0.18$0.23Jul 20: $0.14Jul 21: $0.14Jul 22: $0.14Jul 23: $0.14Jul 24: $0.14Jul 25: $0.14Jul 26: $0.14Jul 27: $0.14Jul 28: $0.14Jul 29: $0.14Jul 30: $0.14Jul 31: $0.14Aug 1: $0.14Aug 2: $0.14Aug 3: $0.14Aug 4: $0.14Aug 5: $0.14Aug 7: $0.14Aug 8: $0.14Aug 9: $0.14Aug 10: $0.14Aug 11: $0.14Aug 12: $0.14Aug 13: $0.14Aug 14: $0.14Aug 15: $0.14Aug 16: $0.14Aug 17: $0.14Aug 18: $0.14Aug 19: $0.14Aug 20: $0.14Aug 21: $0.14Aug 22: $0.14Aug 23: $0.14Aug 24: $0.14Aug 25: $0.14Aug 26: $0.14Aug 27: $0.14Aug 28: $0.14Aug 29: $0.14Aug 30: $0.14Aug 31: $0.14Sep 1: $0.14Sep 2: $0.14Sep 3: $0.14Sep 4: $0.14Sep 5: $0.14Sep 6: $0.14Sep 7: $0.14Sep 8: $0.14Sep 9: $0.14Sep 10: $0.14Sep 11: $0.14Sep 12: $0.14Sep 13: $0.14Sep 14: $0.14Sep 15: $0.14Sep 16: $0.14Sep 17: $0.20Sep 18: $0.20Sep 19: $0.20Sep 20: $0.20Sep 21: $0.20Sep 22: $0.20Sep 23: $0.20Sep 24: $0.20Sep 25: $0.20Sep 26: $0.20Sep 27: $0.20Sep 28: $0.22Sep 29: $0.22Sep 30: $0.22Oct 1: $0.22Oct 2: $0.22Oct 3: $0.22Oct 4: $0.22Oct 5: $0.22Oct 6: $0.22Oct 7: $0.22Oct 8: $0.22Oct 9: $0.22Oct 10: $0.22Oct 11: $0.22Oct 12: $0.22Oct 13: $0.22Oct 14: $0.22Oct 15: $0.22Oct 16: $0.22Oct 17: $0.22Oct 18: $0.22Oct 19: $0.22Oct 20: $0.22Jul 20Oct 20

Spawn (medium not stated)

Cheapest today
$25.70/unit
Median
$25.70/unit
Highest today
$25.70/unit
In stock now
1
VendorListing Per unitListing price Stock
Out-Grow Blue Oyster Mushroom Spawn, 1 Quart Jar $25.70 $25.70 in stock view →

Price history — spawn (medium not stated) (daily median)

$19.58$22.87$26.15Jul 20: $20.04Jul 21: $20.04Jul 22: $20.04Jul 23: $20.04Jul 24: $20.04Jul 25: $20.04Jul 26: $20.04Jul 27: $20.04Jul 28: $24.95Jul 29: $24.95Jul 30: $24.95Jul 31: $24.95Aug 1: $24.95Aug 2: $24.95Aug 3: $24.95Aug 4: $24.95Aug 5: $24.95Aug 7: $24.95Aug 8: $24.95Aug 9: $24.95Aug 10: $24.95Aug 11: $24.95Aug 12: $24.95Aug 13: $24.95Aug 14: $24.95Aug 15: $24.95Aug 16: $24.95Aug 17: $24.95Aug 18: $25.70Aug 19: $25.70Aug 20: $25.70Aug 21: $25.70Aug 22: $25.70Aug 23: $25.70Aug 24: $25.70Aug 25: $25.70Aug 26: $25.70Aug 27: $25.70Aug 28: $25.70Aug 29: $25.70Aug 30: $25.70Aug 31: $25.70Sep 1: $25.70Sep 2: $25.70Sep 3: $25.70Sep 4: $25.70Sep 5: $25.70Sep 6: $25.70Sep 7: $25.70Sep 8: $25.70Sep 9: $25.70Sep 10: $25.70Sep 11: $25.70Sep 12: $25.70Sep 13: $25.70Sep 14: $25.70Sep 15: $25.70Sep 16: $25.70Sep 17: $25.70Sep 18: $25.70Sep 19: $25.70Sep 20: $25.70Sep 21: $25.70Sep 22: $25.70Sep 23: $25.70Sep 24: $25.70Sep 25: $25.70Sep 26: $25.70Sep 27: $25.70Sep 28: $25.70Sep 29: $25.70Sep 30: $25.70Oct 1: $25.70Oct 2: $25.70Oct 3: $25.70Oct 4: $25.70Oct 5: $25.70Oct 6: $25.70Oct 7: $25.70Oct 8: $25.70Oct 9: $25.70Oct 10: $25.70Oct 11: $25.70Oct 12: $25.70Oct 13: $25.70Oct 14: $25.70Oct 15: $25.70Oct 16: $25.70Oct 17: $25.70Oct 18: $25.70Oct 19: $25.70Oct 20: $25.70Jul 20Oct 20

Liquid culture

Cheapest today
$12.73/syringe
Median
$17.37/syringe
Highest today
$22.00/syringe
In stock now
2
VendorListing Per syringeListing price Stock
Out-Grow Blue Oyster Mushroom (Pleurotus columbinus) Liquid Culture Syringe $12.73 $12.73 in stock view →
North Spore Organic Blue Oyster Mushroom Liquid Culture Syringe $22.00 $22.00 in stock view →

Price history — liquid culture (daily median)

$12.36$15.05$17.74Jul 20: $16.17Jul 21: $16.17Jul 22: $16.17Jul 23: $16.17Jul 24: $16.17Jul 25: $16.17Jul 26: $16.17Jul 27: $16.17Jul 28: $16.17Jul 29: $16.17Jul 30: $16.17Jul 31: $16.17Aug 1: $16.17Aug 2: $16.17Aug 3: $16.17Aug 4: $16.17Aug 5: $16.17Aug 7: $16.17Aug 8: $16.17Aug 9: $16.17Aug 10: $16.17Aug 11: $16.17Aug 12: $16.17Aug 13: $16.17Aug 14: $16.17Aug 15: $16.17Aug 16: $16.17Aug 17: $16.36Aug 18: $16.36Aug 19: $16.36Aug 20: $16.36Aug 21: $16.36Aug 22: $16.36Aug 23: $16.36Aug 24: $16.36Aug 25: $16.36Aug 26: $16.36Aug 27: $16.36Aug 28: $16.36Aug 29: $16.36Aug 30: $16.36Aug 31: $16.36Sep 1: $16.36Sep 2: $16.36Sep 3: $16.36Sep 4: $16.36Sep 5: $16.36Sep 6: $16.36Sep 7: $15.40Sep 8: $15.40Sep 9: $15.40Sep 10: $15.40Sep 11: $15.40Sep 12: $15.40Sep 13: $15.40Sep 14: $15.40Sep 15: $15.40Sep 16: $15.40Sep 17: $15.40Sep 18: $15.40Sep 19: $15.40Sep 20: $15.40Sep 21: $16.36Sep 22: $16.36Sep 23: $16.36Sep 24: $16.36Sep 25: $16.36Sep 26: $16.36Sep 27: $16.36Sep 28: $17.37Sep 29: $17.37Sep 30: $12.73Oct 1: $12.73Oct 2: $12.73Oct 3: $12.73Oct 4: $12.73Oct 5: $12.73Oct 6: $17.37Oct 7: $17.37Oct 8: $17.37Oct 9: $17.37Oct 10: $17.37Oct 11: $17.37Oct 12: $17.37Oct 13: $17.37Oct 14: $17.37Oct 15: $17.37Oct 16: $17.37Oct 17: $17.37Oct 18: $17.37Oct 19: $17.37Oct 20: $17.37Jul 20Oct 20

Agar & lab

Cheapest today
$26.47/plate
Median
$74.99/plate
Highest today
$199.99/plate
In stock now
23
VendorListing Per plateListing price Stock
Out-Grow Blue Oyster Mushroom (Pleurotus columbinus) Mushroom Plate Culture $26.47 $26.47 in stock view →
North Spore Blue Oyster Mushroom Plate Culture — NSPO1 - Harbor Blue Oyster (Pleurotus ostreatus) $74.99 $74.99 in stock view →

Price history — agar & lab (daily median)

$71.24$74.99$78.74Jul 20: $74.99Jul 21: $74.99Jul 22: $74.99Jul 23: $74.99Jul 24: $74.99Jul 25: $74.99Jul 26: $74.99Jul 27: $74.99Jul 28: $74.99Jul 29: $74.99Jul 30: $74.99Jul 31: $74.99Aug 1: $74.99Aug 2: $74.99Aug 3: $74.99Aug 4: $74.99Aug 5: $74.99Aug 7: $74.99Aug 8: $74.99Aug 9: $74.99Aug 10: $74.99Aug 11: $74.99Aug 12: $74.99Aug 13: $74.99Aug 14: $74.99Aug 15: $74.99Aug 16: $74.99Aug 17: $74.99Aug 18: $74.99Aug 19: $74.99Aug 20: $74.99Aug 21: $74.99Aug 22: $74.99Aug 23: $74.99Aug 24: $74.99Aug 25: $74.99Aug 26: $74.99Aug 27: $74.99Aug 28: $74.99Aug 29: $74.99Aug 30: $74.99Aug 31: $74.99Sep 1: $74.99Sep 2: $74.99Sep 3: $74.99Sep 4: $74.99Sep 5: $74.99Sep 6: $74.99Sep 7: $74.99Sep 8: $74.99Sep 9: $74.99Sep 10: $74.99Sep 11: $74.99Sep 12: $74.99Sep 13: $74.99Sep 14: $74.99Sep 15: $74.99Sep 16: $74.99Sep 17: $74.99Sep 18: $74.99Sep 19: $74.99Sep 20: $74.99Sep 21: $74.99Sep 22: $74.99Sep 23: $74.99Sep 24: $74.99Sep 25: $74.99Sep 26: $74.99Sep 27: $74.99Sep 28: $74.99Sep 29: $74.99Sep 30: $74.99Oct 1: $74.99Oct 2: $74.99Oct 3: $74.99Oct 4: $74.99Oct 5: $74.99Oct 6: $74.99Oct 7: $74.99Oct 8: $74.99Oct 9: $74.99Oct 10: $74.99Oct 11: $74.99Oct 12: $74.99Oct 13: $74.99Oct 14: $74.99Oct 15: $74.99Oct 16: $74.99Oct 17: $74.99Oct 18: $74.99Oct 19: $74.99Oct 20: $74.99Jul 20Oct 20

We check Blue Oyster supply prices at every vendor we track, every day. How the index works · All categories · All tracked species