Fungi Farm Mushroom Windowsill Kit - White Button

Growing Instructions:
This kit is designed for indoor growing. Choose a clean area away from direct heat sources and draughts. Avoid direct sunlight to prevent overheating. Mushrooms prefer indirect, filtered light.

Step 1. Prepare the compost
• Remove the white bag containing the top soil from the packaging and store it separately in a cool place, ideally around 15°C (59°F).
• Place the transparent lid on the growing tray and position the kit at 20-25°C (68-77°F) for around 4 days.
• During this time the compost will become covered with fuzzy, white fungal threads called mycelium.
Except for spraying, leave the lid on the growing container throughout the entire growing process.

Step 2. Add the top soil
• Once the compost is fully overgrown with white mycelium, open the white bag of top soil. Spread it evenly and very loosely over the compost until it is completely covered.
• Do not press down on the top soil.
• Now pull 4 or 5 strands of straw from the compost through the soil in 6 places.
• Keep the lid closed and store the kit at 20-25°C (68-77°F) for 5 to 8 days.
• Lightly mist the top soil once a day for 5 days.
• During this stage, the mycelium will grow up through the soil to the surface.

Step 3. Encourage mushroom formation
• When white fluff is visible on the surface, move the kit to a cooler spot at 16-17°C (61-63°F).
• Spray lightly every 2 to 3 days.
• Small, dense clusters called pin heads will form, first around the edges, then across the centre.

Step 4. Harvest
• Most pin heads will grow into full sized mushrooms.
• To harvest, hold the mushroom between two fingertips and twist carefully. Do not pull.
Please note: mushrooms do not grow at the same rate, so leave any that are not yet ready and continue spraying lightly until all are harvested.

Step 5. Further harvests
• Once all mushrooms have been harvested, moisten the top soil with water until it feels wet but not soggy.
• Allow the kit to rest for 5 to 6 days at 20-25°C (68-77°F), then repeat from step 3 for another flush.

For more information and guidance check out our Gardening Guides.

Harvesting: Take a mushroom between your fingertips and carefully pull it out with a twist of the hand. Do not pull out without twisting and do not harvest undersized mushrooms. Always water regularly to prevent the ‘cover compost’ from drying out.

Seeds and garden supplies will normally be delivered within the time period stated against each product as detailed above. Plants, bulbs, corms, tubers, shrubs, trees, potatoes, etc. are delivered at the appropriate time for planting or potting on. Delivery times will be stated on the product page above, or in your order acknowledgement page and email.

Orders for packets of seed incur a delivery charge of £2.99.

Orders which include any other products will incur a delivery charge of £6.99.

Where an order includes both packets of seeds and other products, a maximum delivery charge of £7.99 will apply - regardless of the number of items ordered.

Large Non-standard items may incur a higher, lorry delivery charge. Charges will be calculated at checkout, but an example of the lorry charges are listed below.

• Red - £9.99.
• Purple - £2.99.

For more information please visit our delivery charges information page by clicking here.

For more information on how we send your plants please visit our Helpful Guide on plant sizes.