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  • Shiitake Colonized Grain Spawn — 6 lb

Shiitake Colonized Grain Spawn — 6 lb

Colonized Grain Spawn

$39.99

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

Large-batch Shiitake colonized grain. Pairs well with supplemented hardwood substrate for commercial-scale grows.
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 7 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 27 reviews
5 ★ 100%
4 ★ 0%
3 ★ 0%
2 ★ 0%
1 ★ 0%
★★★★★
October 25, 2025

Excellent all around. Will definitely be a repeat customer.

MH
Marcus H.
Verified
★★★★★
August 3, 2026

Highly satisfied. Everything about it is spot on and sturdy.

WL
William L.
Verified
★★★★★
August 23, 2026

Couldn't be happier. Exactly as described and shipped fast.

EP
Ella P.

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