Home
Blog
GetMagic Ready-to-Grow Kit instructions

GetMagic Ready-to-Grow Kit instructions

Applicable to all GetMagic® Standard (1200 ml) and XL (2100 ml) grow kits

These are the official GetMagic grow kit instructions for growing psilocybe cubensis mushrooms at home. GetMagic® kits arrive fully colonized and ready to fruit — no prior experience needed. Follow these steps carefully and your first flush will typically be ready to harvest within 2–4 weeks.

Not sure which kit to choose? Browse the full range of GetMagic® grow kits — available in 10+ strains in both Standard and XL sizes.

Before you start

Begin cultivation as soon as possible for the best results. The white substance inside the grow box is mycelium — the root-like network of the fungus from which the mushrooms grow. Its fluffy, mould-like appearance is completely normal.

Storage: If you need to wait before starting, store the unopened kit in the fridge at 2–7 °C for a maximum of 14 days.

What's in the box?

Grow box with pre-colonized substrate and mycelium

Grow bag with integrated air filters

2× paper clips

Sterile protocol

Contamination is the most common cause of failed grows. Before every interaction with your kit:

Clean your work surface with disinfecting alcohol

Wash your hands and forearms thoroughly

Ideally, wear sterile gloves

Initial setup (Day 1)

1
Soak procedure

Remove the lid and fill the grow box with water suitable for human consumption. Replace the lid on the grow box. Place the grow kit in the fridge for 30 minutes to soak.

⚠️ No distilled water. Maximum 30 minutes.

Distilled water lacks the minerals needed for healthy mycelium. Soaking longer than 30 minutes can damage the substrate.

2
Drain the water

Slightly open the lid at one corner and drain all excess water from the grow box. Remove the lid completely, rinse it, and store it for future use — you'll need it again for subsequent flushes.

3
Let's grow

Pour 100–200 ml of drinking water into the provided empty grow bag. Place the grow box inside the bag. Fold the top of the bag over twice, folding as high as possible so the air filters remain unobstructed. Secure the fold using the paper clips.

Do's and don'ts

Do's

Place your kit on a clean, elevated surface such as a shelf or desk — this promotes airflow around the kit.

Temperature: 23 °C, as stable as possible — even at night

Light: Indirect daylight with a natural day-and-night cycle

Don'ts

No direct sunlight

Do not place in bathroom, kitchen or near radiators

Never place kit inside an enclosed space, another container or box

Too cold at home? A specialised heat mat can help maintain a stable temperature. If your kit isn't showing growth after 12–15 days, read: What to do if your magic mushroom kit won't grow — covers light, temperature and lazy or sleeping kits.

Maintenance (starting from Day 3)

Fresh air exchange (Day 3+)

Fresh air exchange (FAE) removes built-up CO₂ and brings in fresh oxygen. This is essential for healthy pin development. Perform it once every day starting from Day 3, and continue until you harvest.

Close windows to minimise airflow in the room and wait 30 minutes for the air to settle

Remove the paper clips and open the grow bag

Gently press the sides of the bag together to expel the old air, then pull the sides apart to allow fresh air to enter

Close the grow bag by folding it and securing the paper clips in the same way as during initial setup

Repeat this every day until harvesting

Humidity check

When you notice condensation inside the grow bag, the humidity level is sufficient and additional misting is not needed.

When no condensation is observed, lightly spray two mists of water inside the bag using a misting bottle
, after performing the fresh air exchange. Do not spray directly onto the substrate or mushrooms.

⚠️ When it comes to water: less is more. Too much water can stop mushroom growth entirely.

Harvesting (Day 13–30)

The first pins typically appear from Day 10 onwards. Once pins form, mushrooms reach harvest size in 3–7 days. Harvest when the veil beneath the caps starts to tear — this is the most reliable signal, regardless of the mushrooms' size.

Wash your hands before handling

Harvest all mushrooms — large and small — by twisting gently from the base

Do not leave stumps — remove any leftover stem material to prevent rot and contamination

Also harvest mushrooms growing along the sides of the substrate

Harvest before the caps open fully. Released spores may reduce future yields and can cause respiratory irritation in enclosed spaces.

Want to know more about timing? Read: When do I harvest magic mushrooms from a grow kit?

Repeat for more harvests

After harvesting, restart from Step 1 (soak procedure) to cultivate a new flush. Continue this cycle until the kit stops producing mushrooms. Most GetMagic® kits yield 2–3 flushes.

Quick reference

Hygiene	Disinfect hands, arms, and workspace before every interaction
Temperature	23 °C — stable, never below 20 °C
Soak time	30 minutes in the fridge — no distilled water, max 30 mins
Fresh air exchange	Once a day from Day 3 until harvest
Humidity	100–200 ml in bag on setup; mist 2× only if no condensation visible
Light	Indirect daylight — no direct sun, natural day/night cycle
Harvest signal	Veil beneath cap begins to tear (Day 13–30)

After your first flush

When do I harvest magic mushrooms? — the definitive timing guide

How to pick magic mushrooms correctly — step-by-step harvesting technique

How to dry and store magic mushrooms — preserve your harvest properly

Mushroom aborts — what to do? — understanding small, stopped pins

How to store your grow kit between flushes

Troubleshooting

My grow kit isn't growing — what's wrong? — lazy, unhappy and sleeping kits explained

My grow kit is contaminated — identify and respond to green or black mould

What is the ideal temperature for growing? — the most common cause of slow growth

Dud flushes — why some mushrooms have no effect

Using a heat mat with your grow kit

Ready to order a new kit or try a different strain?

Browse all GetMagic® grow kits →