Antler Reishi Mushroom Grow Kit (5lbs)
Antler Reishi Mushroom Grow Kit (5lbs) is backordered and will ship as soon as it is back in stock.
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Description
Description
This Antler Reishi mushroom grow kit is a 5 lb block already fully colonized with Ganoderma lucidum mycelium. Mist daily, and rather than the typical flat, shelf-like conk you may picture, upright, branching, antler-shaped growths begin forming — no sterile technique, no incubation, no equipment beyond the mister in the box.
Antler Reishi is a distinct growth form of the same species long used in traditional Chinese medicine, typically consumed as teas or tinctures rather than eaten fresh. The antler shape itself is a real growing phenomenon, not just a name.
- 5 lbsColonized block
- 1.5–2 lbsTypical yield
- 65–80°FFruiting temp
- 8–10 hrsLight per day
- BeginnerSkill level
Why growers pick Antler Reishi
- A genuinely different growth form – upright, branching, horn-like structures instead of the flat conk shape most people associate with Reishi
- Traditional functional species – Ganoderma lucidum has a long history of use in traditional Chinese medicine, prized for its polysaccharide, triterpenoid, and beta-glucan content
- Multiple flushes – 1.5–2 lbs wet weight per block across the fruiting cycle
- Beginner-friendly – no experience or special tools needed beyond the included mister
- Distinctive appearance – a striking, sculptural addition to any grow space
- Ready to fruit – open, mist, and provide indirect light
What comes in the kit
- 5 lb pre-colonized fruiting block with first-generation Antler Reishi genetics
- Ultra-fine pump mister for daily watering
- Printed step-by-step growing instructions
How a spray-and-grow kit works
The short versionEverything difficult about mushroom cultivation — sterilization, inoculation, colonization — already happened before this block shipped. Your job is to trigger fruiting and keep the surface from drying out.
- Cut the bag. Make a single slit across the face of the block as shown in the instructions. Opening the bag is what signals the mycelium to stop eating and start fruiting — a single slit is all it needs, so don't open it up further.
- Mist once or twice a day. Light passes over the cut face with the included mister. You are keeping the surface from drying out, not soaking it.
- Give it indirect light. Roughly 8–10 hours a day. Ambient room light is plenty.
- Keep air exchange low. Unlike most gourmet species, Antler Reishi's branching, horn-like shape develops specifically under elevated CO2 rather than fresh air — do not increase ventilation the way you would for oyster mushrooms.
- Harvest, then rest the block. Cut the antlers free once they've developed fully. Stop misting for a week, then resume for the next flush.
This shape is CO2-driven: the antler form is not just a name — it is what Ganoderma lucidum grows into under higher CO2 and lower air exchange than most mushrooms want. This is the opposite of the fresh-air-hungry oyster and Lion's Mane kits in this collection, so resist the urge to add extra ventilation.
Growing specifications
| Specification | Detail |
|---|---|
| Species | Ganoderma lucidum, Antler growth form |
| Block weight | 5 lbs, fully colonized |
| Expected yield | 1.5–2 lbs wet weight across multiple flushes |
| Fruiting temperature | 65–80°F |
| Light | 8–10 hours indirect light per day |
| Humidity method | Mist cut face 1–2× daily |
| Air exchange | Low — elevated CO2 is what produces the antler growth form |
| Skill level | Beginner — no sterile technique required |
Appearance and traditional use
Antler Reishi grows into upright, branching, horn-like structures rather than the broad, flat, lacquered conks most people picture when they hear "Reishi." Both are the same species, Ganoderma lucidum — the antler form results from fruiting in a higher-CO2, lower-airflow environment than the conk form.
Traditionally, Reishi is dried and prepared as tea or tincture rather than cooked and eaten, owing to its woody texture and earthy, slightly bitter taste. It has a long history in traditional Chinese medicine, where it has been associated with longevity and balance.
Worth knowingBecause Antler Reishi wants less air exchange than most kits, a sealed or lightly vented portable humidity tent can help hold both humidity and CO2 around the block, especially in a drafty room.
Common questions
Why does my Reishi look like antlers instead of a normal mushroom cap?
This is by design. The antler growth form comes from fruiting Ganoderma lucidum under higher CO2 and lower air exchange than the classic flat conk shape needs. It is the same species, just a different growth form driven by growing conditions.
Should I increase ventilation to speed up fruiting?
No — do the opposite of what you would do for an oyster mushroom kit. Keeping air exchange low and CO2 elevated is what preserves the antler growth form. Increasing fresh air will push the mushroom toward the flatter conk shape instead.
How long until my Antler Reishi grow kit starts fruiting?
Reishi is generally slower than fast species like oyster mushrooms. Expect the first antler-like growths to appear over several weeks rather than days. Keep misting on schedule and be patient.
What do I do with Antler Reishi once I harvest it?
Most growers dry it and prepare it as a tea or tincture rather than cooking and eating it fresh — the texture is woody and the flavor is earthy and slightly bitter. This is consistent with its traditional use in Chinese medicine.
How many harvests will one kit give me?
Most blocks produce multiple flushes, totaling 1.5–2 lbs wet weight. After harvesting, pause misting for about a week to let the mycelium recover, then resume — the block is rebuilding reserves during that rest.

