King Oyster Mushroom Grain Spawn Bag

King Oyster Mushroom Grow Kit (Grain Spawn) – Easy Home Cultivation

Grow thick, meaty King Oyster mushrooms at home — simple, fast, and reliable.

Experience premium mushroom cultivation at home with a high-performance mushroom grow kit designed for effortless results. This ready-to-use King Oyster grain spawn removes the complexity, making it easy for anyone to grow gourmet mushrooms with confidence.

Simple, Reliable, Ready to Grow

This is a fully colonised King Oyster grain spawn, meaning it’s already active and ready to use. No inoculation, no waiting—just mix with your substrate and start growing. Ideal for beginners and experienced growers alike.

Why It Works

Optimised grain hydration and carefully selected King Oyster strains ensure fast colonisation, strong growth, and consistent yields.
Prepared in sterile conditions for clean, contamination-resistant performance.

Key Benefits

• ✔️ Premium mushroom grow kit for easy home growing
• ✔️ Pre-colonised grain spawn — ready straight out of the box
• ✔️ Beginner-friendly with a simple, guided process
• ✔️ Fast harvests — ready in as little as 3 weeks
• ✔️ High-yield strains for thick, meaty mushrooms
• ✔️ Compatible with hardwood and Masters Mix substrates
• ✔️ Compact, discreet growing — no strong odours
• ✔️ Backed by our growth guarantee

How It Works

1. Mix – Combine spawn with substrate (approx. 6:1 ratio)
2. Colonise – Let the substrate fully colonise in a warm space
3. Open – Cut the top of the bag to introduce fresh air
4. Maintain – Keep humidity high with daily misting
5. Harvest – Enjoy dense King Oyster mushrooms in weeks

What’s Included

• 1.5kg King Oyster Mushroom Grain Spawn Bag (fully colonised)
• Lifetime growth guarantee
• Access to our online growing guide

Not Included

• Substrate (recommended: hardwood or Masters Mix)
• Printed guide

Storage & Notes

• Best used soon after delivery
• Refrigerate if needed — lasts up to 3 months
• Handle in a clean environment to prevent contamination

Grow gourmet mushrooms with ease. This King Oyster mushroom grow kit is built for simplicity, consistency, and high-quality results—making growing mushrooms at home easier than ever.