MushroomPriceIndex

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 September 17, 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

Cheapest today
$29.99/bag
Median
$29.99/bag
Highest today
$29.99/bag
In stock now
1
VendorListing Per bagListing 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)

$28.49$29.99$31.49Jul 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: $29.99Jul 20Sep 17

Liquid culture

Cheapest today
$10.82/syringe
Median
$15.41/syringe
Highest today
$19.99/syringe
In stock now
2
VendorListing Per syringeListing price Stock
Out-Grow Elm Oyster (Hypsizygus ulmarius) Liquid Culture Syringe $10.82 $10.82 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)

$15.33$15.88$16.44Jul 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: $15.40Jul 20Sep 17

Agar & lab

Cheapest today
$26.47/plate
Median
$50.73/plate
Highest today
$74.99/plate
In stock now
2
VendorListing Per plateListing price Stock
Out-Grow Elm Oyster (Hypsizygus ulmarius) Mushroom Plate Culture $26.47 $26.47 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)

$50.31$50.54$50.76Jul 20: $50.34Jul 21: $50.34Jul 22: $50.34Jul 23: $50.34Jul 24: $50.34Jul 25: $50.34Jul 26: $50.34Jul 27: $50.34Jul 28: $50.34Jul 29: $50.34Jul 30: $50.34Jul 31: $50.34Aug 1: $50.34Aug 2: $50.34Aug 3: $50.34Aug 4: $50.34Aug 5: $50.34Aug 7: $50.34Aug 8: $50.34Aug 9: $50.34Aug 10: $50.34Aug 11: $50.34Aug 12: $50.34Aug 13: $50.34Aug 14: $50.34Aug 15: $50.34Aug 16: $50.34Aug 17: $50.34Aug 18: $50.73Aug 19: $50.73Aug 20: $50.73Aug 21: $50.73Aug 22: $50.73Aug 23: $50.73Aug 24: $50.73Aug 25: $50.73Aug 26: $50.73Aug 27: $50.73Aug 28: $50.73Aug 29: $50.73Aug 30: $50.73Aug 31: $50.73Sep 1: $50.73Sep 2: $50.73Sep 3: $50.73Sep 4: $50.73Sep 5: $50.73Sep 6: $50.73Sep 7: $50.73Sep 8: $50.73Sep 9: $50.73Sep 10: $50.73Sep 11: $50.73Sep 12: $50.73Sep 13: $50.73Sep 14: $50.73Sep 15: $50.73Sep 16: $50.73Sep 17: $50.73Jul 20Sep 17

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