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The Copelandia Hawaiian grow kit is a fully colonised 1200 ml horse dung grow block that lets experienced growers fruit Panaeolus cyanescens 'Hawaiian' at home, a species up to five times stronger than Psilocybe cubensis. The mycelium has already worked through the substrate. Your job is to case it, keep it humid and harvest at the right moment.
What the Copelandia Hawaiian Grow Kit Is
The kit is a ready-to-fruit block of Panaeolus cyanescens on horse dung, sold for adults aged 18 and over who already know their way around a mushroom kit. Copelandia is the older genus name for this species, and it's still the name most growers use. The 'Hawaiian' variety is up to five times as potent as Psilocybe cubensis, which is why this is the Panaeolus kit we'd hand to a regular and not to a first-timer.
Open the box and the smell tells you what you're working with: earthy, farmyard, faintly sweet. That's the horse dung substrate, and it's exactly what Panaeolus cyanescens grows on in the wild. The block feels dense and firm, with white mycelium running right through it.
What's in the Copelandia Hawaiian Grow Kit Box
The kit contains four things, and each one has a specific job. Nothing is filler, including the holes in the bag.
| Item | Quantity | What it does |
|---|---|---|
| Fully colonised grow block (horse dung substrate) | 1 × 1200 ml | The food source, already fully run with Panaeolus cyanescens mycelium |
| Topsoil (casing layer) | 1 cup | Spread over the block to hold moisture and give pins a surface to form on |
| Grow bag | 1 | Keeps humidity up. The small perforation holes are intentional and let the block breathe |
| Growing instructions | 1 set | Species-specific guidance for Copelandia, which behaves differently from cubensis |
Copelandia Hawaiian Grow Kit Specifications
The kit produces 90–130 grams of fresh mushrooms in total, spread over 2–3 flushes. That total figure is for the whole life of the block, not per flush.
| Spec | Value |
|---|---|
| Species | Panaeolus cyanescens (Copelandia) 'Hawaiian' |
| Block volume | 1200 ml |
| Substrate | Horse dung, fully colonised |
| Casing | 1 cup of topsoil, included |
| Expected yield | 90–130 g fresh, in total |
| Flushes | 2–3 |
| Relative potency | Up to 5× Psilocybe cubensis |
| Difficulty | For experienced growers |
Pairs well with a fine-mist plant sprayer and a precision scale. Copelandia is strong enough that weighing your harvest accurately matters far more than it does with a cubensis kit.
Why Choose the Copelandia Hawaiian Grow Kit Over a Cubensis Kit
Choose the Hawaiian kit if you've already grown cubensis and want a species with far more strength per gram. At up to five times the potency of Psilocybe cubensis, a modest harvest of 90–130 grams fresh goes a lot further than the numbers suggest.
| Hawaiian kit | Typical Psilocybe cubensis kit | |
|---|---|---|
| Species | Panaeolus cyanescens | Psilocybe cubensis (e.g. Golden Teacher) |
| Relative potency | Up to 5× | Baseline (1×) |
| Substrate | Horse dung | Usually grain-based |
| Casing step | Yes, topsoil included | Depends on the kit |
| Who it suits | Experienced growers | Often the usual starting point |
Honest limitation: the mushrooms are small. Copelandia fruits in slender, long-stemmed mushrooms with pale grey-white caps. If you're expecting the chunky stems of a Golden Teacher, the first flush can look underwhelming. It isn't. The potency is packed into much less mushroom. The caps and stems also bruise blue quickly when handled, so a light touch keeps them looking tidy.
The other watch-out is the dung substrate. It's less forgiving of sloppy hygiene than grain, and we've seen growers lose a block to one unwashed hand during casing. Gloves on, surfaces wiped, and the kit will reward you.
If you're weighing this against our Copelandia Florida Grow Kit: both are Panaeolus cyanescens on horse dung, so the growing approach is the same. The choice comes down to which named variety you want in your collection. The Hawaiian is the one most people ask for by name.
How to Grow the Copelandia Hawaiian Grow Kit
To grow the kit, you case the colonised block with the included topsoil, place it in the perforated grow bag and keep it humid until mushrooms form. Always follow the species-specific instructions in the box. They're written for Copelandia, not cubensis.
- Wash your hands thoroughly and wipe down your work surface. Gloves are a good idea with a dung-based substrate.
- Open the kit and check the block. It should be firm and white with mycelium throughout.
- Apply the casing: spread the 1 cup of topsoil evenly over the top of the colonised block. Aim for an even layer with no bare patches, and don't pack it down hard.
- Lightly mist the casing layer so it's damp, not soaking. Puddles invite contamination.
- Place the cased block in the grow bag and close it. Leave the small perforation holes as they are. They're there on purpose so the block gets fresh air.
- Set the bag somewhere warm, out of direct sunlight and away from draughts, and keep the humidity up as described in the included instructions.
- When the first little mushrooms appear, follow the included instructions for this stage, and mist the inside of the bag rather than the mushrooms directly.
- Harvest by gently twisting each mushroom off at the base. Pick before the caps flatten out and start dropping their dark spores, which can stain the casing black.
- After harvesting, carry on caring for the block as instructed to bring on the next flush. Expect 2–3 flushes and 90–130 grams fresh in total.
From Our Counter: Handling a Copelandia Hawaiian Harvest
The single most useful thing you can do with a Hawaiian harvest is weigh it. We've been answering mushroom questions since 1999, and the pattern with Copelandia is always the same. People used to cubensis eyeball a portion, forget it's up to five times stronger, and end up with more than they bargained for.
So treat your cubensis habits as not transferable. Weigh on a precision scale, keep the harvest clearly labelled so nobody confuses it with a milder batch, and think about set and setting before anything else: a calm place, a clear day ahead, and ideally someone sober around. Fresh mushrooms keep only briefly in the fridge, so store them loosely wrapped in paper rather than sealed plastic, where they go slimy.
Frequently Asked Questions
Is the Copelandia Hawaiian grow kit suitable for beginners?
No, this kit is intended for experienced growers. Panaeolus cyanescens on horse dung is less forgiving than a cubensis kit, the casing step needs care, and the mushrooms are up to five times stronger. New to growing? Start with a Golden Teacher kit and come back to Copelandia after that.
What makes the Hawaiian kit different from a cubensis kit?
It grows Panaeolus cyanescens 'Hawaiian' instead of Psilocybe cubensis, on a horse dung substrate that matches where the species grows naturally. Potency is up to five times that of cubensis, and the kit includes a cup of topsoil for the casing layer.
How much does the Copelandia Hawaiian grow kit yield?
Expect 90–130 grams of fresh mushrooms in total over 2–3 flushes. That's the full-life figure for the 1200 ml block, not per flush. The mushrooms are slender, so the harvest looks smaller than a cubensis kit's.
Why does the grow bag have holes in it?
The small perforation holes are intentional. They let fresh air reach the block while the bag holds in humidity. Don't tape them over, because Copelandia needs that air exchange to fruit properly.
How do I pick mushrooms from the Copelandia kit?
Twist each mushroom gently at the base and lift it away from the casing. Pick before the caps flatten and drop dark spores. Expect a little blue bruising where you touch the stems, which is normal for Panaeolus cyanescens.
What's the difference between the Copelandia Hawaiian and Florida grow kits?
Both kits grow Panaeolus cyanescens. The difference is where the strain comes from: Hawaii or Florida. Each kit has the same 1200 ml horse dung block, a grow bag and 1 cup of topsoil for casing. The Hawaiian kit yields 90–130 g fresh in total over 2–3 flushes. It is up to five times the potency of cubensis and is meant for experienced growers. The Florida kit yields 100–130 g fresh in total over 3–5 flushes. It is more than four times the potency of cubensis, grows at 23–25 °C and is rated easy.
Last updated: September 2026
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Medical disclaimer. This content is for informational purposes only and does not constitute medical advice. Consult a qualified healthcare provider before use of any substance.