10% Off w/ Thompson & Morgan Promo Codes June 2026

About Thompson & Morgan

Since the first seed catalogue was published in 1855, Thompson & Morgan has grown to become the UK's largest Mail Order Seed and Plant company. Through the publication of our catalogues and the operation of our award-winning website, Thompson & Morgan is able to provide home gardeners with the very best quality products money can buy. In addition to our longstanding UK presence, the brand also operates throughout the world through its international website and offers its popular seed range through major garden centres across Europe.

Thompson & Morgan's Categories

Flowers & Plants

All (8) Codes (3) Deals (5)

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Save L10 Off Storewide (Must Order L20)

Get Save L10 Off Storewide (Must Order L20) at Thompson & Morgan

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**_TN4852W

Terms & Conditions

This code has limited usages, and has been used 0 times.

Cannot be used in conjunction with any other offer.

All brands reserve the right to remove any offer without giving prior notice.

Available whilst stocks lasts.

For full Terms & Conditions please see website.

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Up To 12% Off Select Items (Minimum Order: $12)

Get Up To 12% Off Select Items (Minimum Order: $12) at Thompson & Morgan

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**TAWTOM12

Terms & Conditions

This code has limited usages, and has been used 0 times.

Cannot be used in conjunction with any other offer.

All brands reserve the right to remove any offer without giving prior notice.

Available whilst stocks lasts.

For full Terms & Conditions please see website.

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Up To 65% Off on Blueberry Duo

Get Up To 65% Off on Blueberry Duo at Thompson & Morgan

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**_TN4349W

Terms & Conditions

This code has limited usages, and has been used 0 times.

Cannot be used in conjunction with any other offer.

All brands reserve the right to remove any offer without giving prior notice.

Available whilst stocks lasts.

For full Terms & Conditions please see website.

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UP TO 80% OFF gardening essentials CLEARANCE Sale

Get UP TO 80% OFF gardening essentials CLEARANCE Sale at hompson & Morgan

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Terms & Conditions

This code has limited usages, and has been used 0 times.

Cannot be used in conjunction with any other offer.

All brands reserve the right to remove any offer without giving prior notice.

Available whilst stocks lasts.

For full Terms & Conditions please see website.

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Up To 15% Off Agrostemma githago 'Ocean Pearl' - Seeds

Get Up To 15% Off Agrostemma githago 'Ocean Pearl' - Seeds at Thompson & Morgan

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Terms & Conditions

This code has limited usages, and has been used 0 times.

Cannot be used in conjunction with any other offer.

All brands reserve the right to remove any offer without giving prior notice.

Available whilst stocks lasts.

For full Terms & Conditions please see website.

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Up To 30% Off on Garden Gear - Plug and Seed Growing Tray

Get Up To 30% Off on Garden Gear - Plug and Seed Growing Tray at Thompson & Morgan

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Terms & Conditions

This code has limited usages, and has been used 0 times.

Cannot be used in conjunction with any other offer.

All brands reserve the right to remove any offer without giving prior notice.

Available whilst stocks lasts.

For full Terms & Conditions please see website.

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Get Sign Up with Exclusive Offer at Thompson & Morgan

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Terms & Conditions

This code has limited usages, and has been used 0 times.

Cannot be used in conjunction with any other offer.

All brands reserve the right to remove any offer without giving prior notice.

Available whilst stocks lasts.

For full Terms & Conditions please see website.

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Free Shipping On All Order

Get Free Shipping On All Order at Thompson & Morgan

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No Code

Terms & Conditions

This code has limited usages, and has been used 0 times.

Cannot be used in conjunction with any other offer.

All brands reserve the right to remove any offer without giving prior notice.

Available whilst stocks lasts.

For full Terms & Conditions please see website.