Skip to content
Foxfire Mushrooms Logo
Contact Us
  • Home
  • Shop
  • King Trumpet Colonized Grain Spawn — 3 lb

King Trumpet Colonized Grain Spawn — 3 lb

Colonized Grain Spawn

$27.99

In stock · Free shipping on orders over $75 · Live arrival guaranteed

King Trumpet (Eryngii) mycelium colonized on sterilized grain. Slower colonizer — worth the wait for premium yields.
Or 4 interest-free payments. Ships from Longmont, CO.
Live arrival guarantee

Arrives healthy or we replace it free

Lab-tested clean

Every lot checked for contamination

Fast nationwide shipping

Free over $75 · 1–2 day handling

Colorado small-batch

Grown with care, never at scale

What's included & how it works

Each kit arrives as a fully-colonized block ready to fruit — no sterile technique, no extra gear.

  • Cut the marked window and mist 2–3× daily
  • First pins appear in days; harvest in 1–2 weeks
  • Re-mist for a second and third flush
  • Includes step-by-step printed instructions + a link to our video guide

Additional information

Weight 3.75 lbs

We ship Monday–Wednesday to keep your order moving over the weekend. Orders over $75 ship free. If your living product arrives unhealthy, send us a photo within 48 hours and we’ll replace it free — no questions asked.

Verified reviews

What growers are
saying

Share your experience

5.0
★★★★★
Based on 23 reviews
5 ★ 100%
4 ★ 0%
3 ★ 0%
2 ★ 0%
1 ★ 0%
★★★★★
January 21, 2026

Better than average, in fact quite superior! I'd purchase again.

AM
Andrew M.
Verified
★★★★★
August 23, 2026

Perfect. Setup was easy and it looks great.

LP
Lily P.
★★★★★
August 23, 2026

Good buy. Delivery took a bit but the product is fine.

JL
James L.

More from the lab

Shop all