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Most frequent questions and answers


We are based in the South East of England, United Kingdom.

We understand what its like to be a beginner. The mushroom megaverse is a fast and sometimes confusing place. That’s why we’ve done our very best to compile the most comprehensive grow guides around, to help you get started on the right footing. All this information and instructions for our kits can be found on the guides section of our website. In these guides we cover all the information you will need to grow mushrooms, from start to finish. We have also compiled a troubleshooting tips and tricks guide to help if you get stuck. 

If you have a separate question about growing mushrooms that we do not cover in our guides, feel free to contact us. We are always happy to offer our expertise and help take your grow to the next level.

This is certainly something we can help you with. We offer some great discounts on our full range of products at Martian Mushrooms.

Please contact us via our wholesale page for more information, and to get our prices list.

We take pride in our customer service, so we will always try to reply to your email as fast as we can. If you do not get a response to your question within 24 hours, please contact again and make sure to check your spam folder just in case. Alternatively, contact us via the messaging icon on the bottom right of your screen.

If we did not answer any of your questions above, then contact us here. We are always happy to help and look forward to hearing from you.


At the moment, we only ship to the UK and Ireland. 

We do consider international shipping for large items such as flow hoods or wholesale orders. Please get in touch with us to see if we can ship to you.

The easiest way to keep up to date with the progress of your order is to make an account with us. There you can log in and check payment status, dispatch date and access your tracking information.

We will also send you an email at each step of the process. If you have not received an email from us, it is worth checking your junk mail as often they’ll be hiding there. If not, get in contact with us and a member of our team will be happy to assist.

We ship most of our orders with DPD express, with most deliveries arriving within 24 hours after dispatch.

Our fresh or perishable products (kits, substrates etc) are made to order. Therefore, please allow 2 to 3 days for us to prepare and dispatch your order, especially during busy periods. 

You will receive a dispatch email with tracking info once the order has been dispatched, so that you can keep up to date with its progress.

We have the utmost respect for your privacy. All orders are sent with plain discreet packaging.


We offer a number of different secure and hassle free payment options. Please visit out payments page for details and instructions.

If you have any further questions or need help making a payment, please don’t hesitate to contact us

Once your payment has been received by us, we will email you an order confirmation to confirm the purchase.

If you do not receive a payment confirmation within 24 hours, please contact us and make sure to check your spam folder just in case. Alternatively, contact us via the messaging icon on the bottom right of your screen.


There will be an expiry date on your grow kit. We strongly advise you to inoculate the kit prior to this date. If you do not plan to inoculate your kit immediately, it is best practise to store it in the fridge to keep it as fresh as possible.

There will be an expiry date on any gourmet liquid culture purchased from us. Please store liquid cultures in the fridge, but NEVER freeze!

To help new growers as best we can, we have put together a range of grow guides, each one gives a detailed, step by step process on how to use our kits and substrates and more. We also also give some of our own tips and tricks to maximise your grow. We highly recommend reading through the guide fully before starting your grow, this will ensure the highest chance of success if you follow the steps correctly.

If you have questions that aren’t covered in the guide, then please don’t hesitate to ask. We’re always working on improving our teaching resources to help people grow better, so your feedback is invaluable!


This is a common issue that can occur during the growing process, but don’t worry it is usually pretty easy to overcome. In fact, we’ve put together a handy troubleshooting guide to help answer the most common issues people have when growing mushrooms.

If you have any further questions that aren’t covered in the guide, then please don’t hesitate to ask. We’re always happy to help as best we can.

Biological products, by their very nature, can be unpredictable and sometimes things don’t go as planned. Growing mushrooms is always a battle against contamination, and sometimes it wins.

When things go wrong, don’t worry. We offer replacements for contaminated kits or substrates as per our guarantee.

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