Thompson & Morgan Discount Codes for September 2026

Thompson & Morgan has been an award-winning garden retailer since 1855, when William Thompson published his first seed catalogue. At the time, he had three garden nurseries in his hometown of Ipswich, where he grew rare plants sold across the globe. Since Thompson & Morgan’s beginning, the company has continued to publish catalogues but has also expanded to have a dedicated website and garden centres both in the UK and internationally.

Thompson & Morgan is the perfect destination for any green thumbs, and you’ll find all your garden essentials like seeds, bulbs, flowers, plants, fruit, vegetables, houseplants, and outdoor furniture and decor. Thompson & Morgan has a plant breeding programme in Suffolk in which some award-winning discoveries have been made, including the Buddleja 'Buzz' and Rudbeckia 'Cherry Brandy' plants.

Thompson & Morgan has been supplying the UK with their seed and needs since 1855 and has grown to be the country’s largest mail-order seed and plant company. There’s nothing that they can’t help you get potted and sprouting. With this extensive catalogue of seeds and plants though, you might feel a little overwhelmed not knowing where to begin and, ahem, spread your roots.

If you’re an absolute beginner when it comes to seeds then take a look at Thompson & Morgan easy to grow seeds. You’ll find a range of flowers, fruits and vegetables to get you on your green-fingered journey. So whether you’re after carrots and broad beans for your Sunday dinners or tomatoes and beetroots for your salads you’ll be able to find something for your garden.

The more experienced planters can head straight for the enormous selection of flower seeds. With a range of hardy and half-hardy annuals perfect for borders, hanging baskets and patio containers, you’ll be able to grow and enjoy your own beautiful displays at a fraction of the cost of buying pre-grown flowers. Sunflower seekers and Sweet Pea searchers look no further.

Sweet-toothed gardeners can enjoy a giant range of fruit seeds at Thompson & Morgan. Growing your own fruit can be a great way to save on the food bills and makes those bites even juicier. No need to miss out if space in your garden is at a premium, a lot of fruit grows extremely well in containers, pots and hanging baskets.

If you’re looking for those absolute staples then check out the range of vegetable seeds. Growing your own vegetables is a great hobby for everyone and a great way to reduce your food spending. Vegetables will grow in a range of spaces and containers and whatever you’re situation you’ll find something for you to grow. So from tomatoes and parsnips all the way to chilli seeds, you’ll be eating your own crops in no time.

So make sure to take a look at the latest Thompson & Morgan discount codes and deals because, after all, there’s nothing seedy about saving big!

Follow these instructions to apply your {merchant} discount code and unlock a saving:

1. Take a look at our available {merchant} discount codes and find the one that works best for your shopping needs.

2. Once you’ve found your code, head over to the {merchant} website and start shopping!

3. Find everything you like and add it to your basket.

4. When you’re happy with everything you’ve added, you can begin the checkout process.

5. Enter your details and your discount code into the promo code box.

6. Hit the ‘Apply’ button to watch your total bill shrink.

At MyVoucherCodes, we’re lucky to have a team of hard-working individuals who are dedicated to finding you the best possible discount codes, deals and offers that are currently available. We also work closely with retailers to secure exclusive promotions; providing you with unique savings that you won’t find anywhere else.

We keep in touch with retailers and brands

Based in London, our Commercial team is a key part of everything we do. They know the industry, and they work tirelessly to build relationships with big-name retailers in order to secure exclusive offers and rewards that are then passed on to our customers. They keep their ear to the ground for any upcoming offers and sale events too, meaning we’re always ahead of the game when it comes to updating our website.

Our team scours the web for discounts

They work in tandem with our Deal Experts, who can be found at our Cardiff office. These deal-finding wizards scour the web for all of the best discounts and promotions around, before loading them onto our website for customers to enjoy. They also work closely with affiliate networks that keep us informed of the latest offers for the retailers they represent. Our dedicated retailer pages are updated at least twice a week, meaning you can be confident that the voucher codes you’re seeing are up-to-date and valid.

We share our money-saving knowledge

On our retailer pages, you’ll notice in-depth information about the brand and researched hints and tips on how to save money when shopping online. This is where our Category Editors come in - they know a thing or two when it comes to savvy shopping. From technology, health & beauty and fashion to food & drink, home & garden and travel, they keep all pages up to date with content that is designed to make your shopping experience that little bit easier and to help you save money in the process. For more information on the MyVoucherCodes team and the company as a whole, be sure to check out our About Us page.

As a collaborative team, we do our best to ensure that incorrect or outdated discount codes and offers aren’t listed on any of our retailer pages. To do this, we test the codes ourselves to make sure that they work and aim to give as much guidance as possible with regard to how they are supposed to be used.

However, sometimes details change or codes expire without us knowing. If you find this to be the case, you can get in touch by emailing info@myvouchercodes.co.uk or by visiting our contact page.

Using our discount codes is totally free, although we understand that this may seem too good to be true. Like all businesses, we need to make money, and we do this via commission-based relationships with brands and retailers - we earn a small percentage from the retailer every time someone uses a code on our website or clicks through to a sale.

We also make money by offering the brands we work with the chance to buy some extra space on our website, in turn giving more exposure to their biggest and best discounts. And that’s it! By using this model, we’re able to do what we do without charging our customers a penny.