Maitake Hen of the Woods Colonized Agar Plate

Fully colonized Maitake (Grifola frondosa) agar plate, grown from our master culture and 1st-generation isolated genetics — the same strain we use in our Maitake liquid culture syringes and grow kits. Each plate is produced fresh at our Illinois lab on standard malt extract agar (MEA), fully colonized before it ships, and ready to ship from inventory — usually within 1 business day.

Why Maitake?

Maitake — known in English as Hen of the Woods and in Japanese as the "dancing mushroom" — is one of the most prized mushrooms in the world, valued both as a premier culinary species and as a cornerstone of traditional functional mushroom practice. The name "maitake" (舞茸) literally means "dancing mushroom" in Japanese, said to come from foragers historically dancing with joy upon discovering the rare and valuable rosettes growing at the base of oak trees.

As a culinary mushroom, Maitake offers what many cooks consider the best flavor and texture of any cultivated species — rich, earthy, slightly peppery, with frilly cap edges that crisp beautifully when seared. It commands premium prices at gourmet markets (often $20–$40 per pound fresh) precisely because it's difficult to cultivate at scale and produces stunning rosette clusters that double as visual showpieces.

As a functional mushroom, Maitake has a long history of use in traditional preparations and is notable for its beta-glucan content (particularly the D-fraction polysaccharide complex). It's one of the four most-studied functional mushrooms alongside Reishi, Shiitake, and Turkey Tail.

The Cultivation Challenge — And the Reward

Maitake is one of the more demanding species to cultivate, which is precisely why fresh Maitake commands such high prices in gourmet markets. The mycelium grows more slowly than most cultivated species and requires careful attention to temperature, substrate, and timing. Successful cultivation generally requires:

• Patience — Maitake colonizes hardwood blocks in 3–4 months, considerably longer than oysters (2–3 weeks) or even Shiitake (2–4 months)
• Supplemented hardwood substrate — oak sawdust is the traditional choice; supplementation with wheat bran or soybean hulls is essential for good fruiting
• Cooler fruiting temperatures (55–65°F) and seasonal cold shock to trigger primordia formation
• High biological efficiency when done right — well-managed Maitake blocks can produce 4–8 lb rosettes from single fruiting events

For cultivators willing to commit to the longer timeline, Maitake is one of the most satisfying species to grow. The mature rosettes are unmistakable — overlapping gray-brown fronds in dense clusters that can weigh several pounds — and the market value of fresh Maitake makes it one of the most profitable mushrooms per square foot of fruiting space for small commercial operations.

Working with Maitake on Agar

Maitake mycelium has some distinctive characteristics on agar:

• Slow growth — typically 21–28 days to full colonization at 70–75°F, slower than most species in our lineup
• White, dense, slightly stringy texture with rhizomorphic patterns developing over time
• Sometimes develops a yellow-tan tint at maturity, especially toward the edges — this is healthy mature mycelium, not contamination
• Less aggressive than oyster species — extra care with sterile technique is important since the mycelium doesn't outpace contamination the way fast-growing species do

This is a species that rewards careful, patient cultivators. Beginners can succeed with Maitake, but it's not the species we'd suggest starting with — Blue Oyster or Pink Oyster are more forgiving first projects. By the time you've successfully grown a few oyster cycles, you'll have the technique and patience to tackle Maitake.

Shatterproof Polypropylene Plates

Every Maitake plate ships in a 90mm polypropylene Petri dish — not the standard polystyrene used by most agar sellers. Polypropylene flexes under impact instead of cracking, which means your plate arrives intact even after rough handling in transit. This is a meaningful upgrade: a cracked plate isn't just a damaged product, it's a contamination risk, since a crack breaks the parafilm seal and exposes the culture to airborne contaminants. We chose polypropylene specifically to eliminate that problem.

(The exception in our lineup is Lion's Mane, which uses clear polystyrene to maximize contrast against our specialty black agar.)

What You'll Receive

• One 90mm polypropylene Petri dish, parafilm-sealed for sterility during transit
• ~18mL malt extract agar (MEA) — our standard formulation for gourmet and functional species
• Fully colonized with healthy Maitake mycelium (typically 90–100% coverage at ship time)
• 1st-generation isolated genetics from our master culture — the same strain in our Maitake LC syringes and grow kits
• Lab-inspected for contamination before ship
• Produced fresh at Myco Labs (Illinois, USA)

How to Use Your Agar Plate

A single colonized agar plate is one of the most versatile tools in mushroom cultivation. From one Maitake plate, you can:

• Transfer to grain — cut a small wedge of colonized agar and place it onto sterilized grain (rye, our 5-grain blend) to create grain spawn. Maitake colonizes grain in 28–42 days at room temperature.
• Transfer directly to supplemented hardwood blocks — many experienced Maitake growers skip grain entirely and inoculate sterilized oak sawdust blocks directly from agar wedges, since Maitake fruits exclusively on wood
• Create liquid culture — transfer agar wedges into sterile liquid media to produce your own LC syringes
• Expand to more plates — divide one plate into 4–6 fresh plates to build a long-term Maitake genetic library
• Isolate strong sectors — pick the most vigorous growth and transfer it to a fresh plate to refine your genetics over generations

New to agar work? See our grain transfer tutorial.

Maitake Growing Characteristics

Plate Specifications

Sterility & Quality Standards

Every plate is poured, inoculated, and inspected at Myco Labs under HEPA-filtered laminar flow. Plates are sealed with parafilm immediately after inoculation and incubated in a dedicated clean room until fully colonized. Each plate is visually inspected for contamination before being approved for shipment — for Maitake specifically, our inspectors are trained to distinguish healthy yellow-tan mature mycelium from contamination, since the two can look similar to untrained eyes.

Shipping & Handling

All agar plates are produced ahead of time and held in inventory — they are not made-to-order. Most orders ship within 1 business day of being placed. Multi-item orders (especially those including grow kits, grain spawn, or other made-fresh products) may take 1–2 additional business days to process so we can pack everything together. Orders placed Friday afternoon, weekends, or holidays ship the next business day.

Plates ship in insulated, padded packaging via USPS Priority Mail (typically 2–4 days in transit). In summer months (May–September) or to hot-climate destinations, we include a cold pack at no additional cost. Inspect your plate within 24 hours of arrival — minor condensation on the lid is normal and harmless. Store in a cool, dark place (55–70°F) until ready to use; an unopened, sealed plate stays viable for 60–90 days at room temperature, or 6–12 months refrigerated at 35–40°F.

Recommended Companion Products

• Maitake Liquid Culture Syringe — same genetics, ready-to-inject format
• Grain Spawn Bags — for transferring your colonized agar to bulk
• Maitake All-in-One Grow Kit — for fruiting from the same strain
• Browse All Colonized Agar Plates

Frequently Asked Questions