Blue Oyster Mushroom Kitchen Harvest Kit | 5 lbs.
$25.00
Blue Oyster mushrooms produce dense blue-gray clusters with a rich, savory flavor and tender texture — one of the most satisfying varieties to grow and eat. Your kit arrives ready to go. Set it up, maintain the right environment, and your first mushrooms will appear within days. What happens next depends almost entirely on where you put it.
Quantity
Only 7 left in stock
What's in the Box
✓ One 5 lb ready-to-grow kit
✓ Hardwood sawdust substrate, fully prepared and ready to fruit
✓ Care card included
Getting Started
Growing mushrooms at home is genuinely rewarding — and a little different from anything else you've grown before. Unlike plants, mushrooms don't need soil, sunlight, or fertilizer. What they do need is the right atmosphere: the right temperature, consistent humidity, and fresh air moving through their space. Get those three things right and your kit will do the rest on its own.
Temperature: 65–75°F
Humidity: Aim for 90–95% while your mushrooms are forming. Once you have a good cluster developing, ease back to 80–85% — this improves density and quality.
Fresh air: Mushrooms need airflow to know which way to grow. Gentle movement — not a draft — makes a real difference. A simple humidity tent with small ventilation holes works well.
Light: Indirect light 12–14 hours a day. A windowsill out of direct sun, or a grow light on a timer, is all you need.
Not ready to start yet? Refrigerate the kit and keep it dark — light triggers growth. It will hold for up to 3 months.
Take It Outside
Outdoor growing is one of the most rewarding things you can do with a kit. Nature handles the humidity, temperature swings trigger growth naturally, and kits placed outside last much longer. We had a kit from last season that is still producing.
Method 1: Direct outdoor fruiting
Cut your bag, place the kit in a shaded spot protected from direct rain. Mist if conditions are dry.
Method 2: In-ground burial
Remove the bag and bury the kit in a shaded garden bed with the top surface at or just below grade. The soil retains moisture and moderates temperature — and produces harvests far longer than any indoor setup.
Method 3: Garden bed integration
Break up your kit and layer it through hardwood woodchips in a shaded area. The mushroom network spreads through the bed and produces intermittently for years.
Method 4: Seed a larger area
Break the kit apart and use it to start straw bales, log piles, or woodchip beds. One 5 lb kit can seed a surprisingly large outdoor area.
Seasonality: Blue Oyster thrives in cool, damp conditions — Virginia's spring is ideal. Set your kit out in late March or April.
Your Harvest Timeline
Day 1–2: Score an X across the top of the bag. Mist the exposed surface and place in its spot. Nothing will look different yet.
Day 3–5: Small blue-gray dots appear at the cut — your first mushrooms forming. Your environment is working. Maintain humidity and don't disturb the kit.
Day 5–10: Tiny pins elongate into clusters. The blue color is most vivid now. Growth is fast — some mornings you'll see visible change from the night before.
Day 10–14: Harvest just before caps fully flatten. Best when caps are still slightly cupped. Cut at the base — don't pull.
Second and third harvest: Remove remaining stem material, rehydrate with a light mist, return to your spot. Most kits produce 2–3 harvests. Outdoor kits often go longer.