Valid Thompson & Morgan Coupons for August 2026

Enjoy 5% off your first Thompson & Morgan order when you use this code.

agent score 93/100 · passed 22 of 22 agent checks

Take 10% off seed and plant orders at Thompson & Morgan when you use this code.

agent score 93/100 · passed 23 of 23 agent checks

Use this coupon code to get up to 10% off on eligible purchases at Thompson & Morgan.

agent score 93/100 · passed 27 of 27 agent checks

Get 20% off plant, bulb, and seed orders at Thompson & Morgan with this coupon code.

agent score 93/100 · passed 33 of 33 agent checks

Apply this promo code to save up to 10% on qualifying Thompson & Morgan orders.

agent score 2/100 · passed 9 of 9 agent checks

Get 12% off select items at Thompson & Morgan when you use this code on orders of $12 or more.

agent score 2/100 · passed 2 of 3 agent checks

Add Sollya heterophylla 'Ultra Blue' in a 9cm pot for £5.99 when your order totals over £60. The deal is presented as a shopping-basket offer on Thompson & Morgans Special Offers page.

Get the Summer Saver Bulb Collection, 110 bulbs, for £5.99 when your order is over £20. This basket offer is available through Thompson & Morgans Special Offers section.

Add English Bluebells, 8 bulbs, to an eligible basket for £5.99 with any order. The offer page lists the pack as worth £10.99, making it a reduced-price basket add-on.

Thompson & Morgan is offering free delivery on all seed orders through its dedicated seed delivery offer page. Eligible shoppers can use the offer on vegetable seeds, flower seeds, fruit seeds, popular flower seeds, seeds to sow now and value seeds.

Existing customers can refer a friend, and both parties receive 20% off plants, bulbs and seeds after the referred friend places a first order. The offer is tied to Thompson & Morgans referral programme and uses the referral process rather than a coupon code.

Join the Thompson & Morgan Gardening Club for £10 per year and receive 10% off online orders for 12 months. The discount is applied automatically to eligible Thompson & Morgan products, excluding T&M Marketplace supplier items.

GreenThumb customers can access selected Thompson & Morgan garden deals, including half-price plants and fixed-pound savings on chosen varieties. Listed examples include Tree Peony Rockii and Daphne Aureomarginata at half price, plus additional discounted bulbs and plants.

Save on selected garden ready plants with a mix-and-match offer of 2 packs for £14. The offer is valid while stock lasts, and normal delivery charges apply.