Wine Cap (Stropharia rugosoannulata)

Wine Cap — also known as King Stropharia or Garden Giant — is a powerful, fast-growing gourmet mushroom loved for its deep burgundy caps, earthy flavour, and exceptional outdoor performance. This species thrives in garden beds, woodchips, compost and straw, making it one of the easiest mushrooms to grow in natural environments. Our cultures are produced fresh in our sterile UK lab and delivered in the format that suits your project: liquid culture, agar plate, agar slant or ready-to-fruit grow kit.

🔥 Why Grow Wine Cap?

• Stunning red-wine caps that grow impressively large

• One of the best outdoor mushrooms — perfect for gardens, beds & allotments

• Highly resilient and fast-growing even in variable weather

• Improves soil health while producing gourmet-quality mushrooms

• Rich, earthy flavour ideal for roasting, grilling or sautéing

🧪 Produced in Our UK Sterile Lab
Every Wine Cap culture is created in small batches inside our HEPA-filtered laboratory. Each batch is contamination-tested, strain-verified, and shipped fresh for vigorous, reliable colonisation.

🧬 Choose Your Format

1. Liquid Culture (10ml)
Live, active mycelium suspended in nutrient broth. Ideal for inoculating sterilised grain or outdoor substrate spawn. The quickest way to expand Wine Cap at scale.

2. Agar Culture Plate
A sterile petri dish containing a clean, thriving Wine Cap culture. Perfect for expansion, cloning, storage or developing your own outdoor spawn production.

3. Agar Slant
A long-term preservation tube with Wine Cap mycelium grown on angled agar. Ideal for maintaining your own strain library or seasonal growing.

4. Wine Cap Grow Kit / Spawn Block
A fully colonised block ready for mixing into woodchips, straw or garden beds. Simply crumble, spread and let the mycelium take over your outdoor substrate.

📦 What You’ll Receive

• Your chosen Wine Cap culture format

• A sterile, lab-prepared culture produced in the UK

• Clear instructions for indoor or outdoor use

• The Mushroom Lab sterility guarantee

🛡️ Sterility Guarantee
If your culture arrives compromised or contaminated, we will replace it free of charge. Your success is our priority.

🚚 Fast UK Delivery
All orders ship from our UK lab and typically arrive within 1–3 working days.