DEALHACK

agents@dealhack$fetch the freshest Thompson & Morgan codes…

Valid Thompson & Morgan Coupons for September 2026

✓agent-verified & updated·

Today's Top Thompson & Morgan Coupons:

15 offers in total
£3

Mix & Match Shrubs, Perennials & Climbers for £3 Each

expired

Shop Mix & Match Shrubs, Potted Perennials & Climbers at Thompson & Morgan for £3 each using this promo code.

  • sitewide
  • store issued
How We Verify This Code
96
code confidence
very likely to work

Code confidence is our agents' read on how likely this code is to work. It isn't a strict measure of success probability: plenty of codes score low and still work at checkout. It was last recalculated .

Thompson & Morgan published this code itself, on its own pages, its newsletter or a feed we take from it.

use code
£1.99

Selected Plants for £1.99 at Thompson & Morgan

worked at checkout

Shop selected plants at Thompson & Morgan and get them for £1.99 with this discount code.

  • sitewide
  • store issued
How We Verify This Code
96
code confidence
very likely to work
2 of 2
code checks worked
3
shoppers tried it at checkout
in the last 14 days
3
shoppers got the discount

Shoppers who tried it at checkout entered this code in their cart in the last 14 days, each checkout counted once. Shoppers who got the discount are the ones whose cart total went down when the code was applied.

Code confidence is our agents' read on how likely this code is to work. It isn't a strict measure of success probability: plenty of codes score low and still work at checkout. It was last recalculated .

Thompson & Morgan published this code itself, on its own pages, its newsletter or a feed we take from it.

use code
£9.99

Bumper Spring Bulb Collection for £9.99

Get the Bumper Spring Bulb Collection (500 bulbs) for £9.99 at Thompson & Morgan with this code.

  • sitewide
  • store issued
How We Verify This Code
95
code confidence
very likely to work

Code confidence is our agents' read on how likely this code is to work. It isn't a strict measure of success probability: plenty of codes score low and still work at checkout. It was last recalculated .

Thompson & Morgan published this code itself, on its own pages, its newsletter or a feed we take from it.

use code
£3

Bulb Packs for £3 Each at Thompson & Morgan

worked at checkout

Shop Mix & Match Bulb Packs at Thompson & Morgan and get them for £3 each with this coupon code.

  • sitewide
  • store issued
How We Verify This Code
84
code confidence
very likely to work
4 of 4
code checks worked
3
shoppers tried it at checkout
in the last 14 days
3
shoppers got the discount

Shoppers who tried it at checkout entered this code in their cart in the last 14 days, each checkout counted once. Shoppers who got the discount are the ones whose cart total went down when the code was applied.

Code confidence is our agents' read on how likely this code is to work. It isn't a strict measure of success probability: plenty of codes score low and still work at checkout. It was last recalculated .

Thompson & Morgan published this code itself, on its own pages, its newsletter or a feed we take from it.

use code
£3

Potted Perennials & Shrubs for £3 Each

worked at checkout

Apply this promo code to get Mix & Match Potted Perennials, Shrubs & Climbers for £3 each at Thompson & Morgan.

  • store issued
How We Verify This Code
55
code confidence
good chance it works
2 of 2
code checks worked

Code confidence is our agents' read on how likely this code is to work. It isn't a strict measure of success probability: plenty of codes score low and still work at checkout. It was last recalculated .

Thompson & Morgan published this code itself, on its own pages, its newsletter or a feed we take from it.

use code
£3

Mix & Match Bulb Packs for £3 Each

Use this promo code to get Mix & Match Bulb Packs for £3 each at Thompson & Morgan.

  • store issued
How We Verify This Code
53
code confidence
good chance it works
4 of 4
code checks worked
2
shoppers tried it at checkout
in the last 14 days
2
shoppers got the discount

Shoppers who tried it at checkout entered this code in their cart in the last 14 days, each checkout counted once. Shoppers who got the discount are the ones whose cart total went down when the code was applied.

Code confidence is our agents' read on how likely this code is to work. It isn't a strict measure of success probability: plenty of codes score low and still work at checkout. It was last recalculated .

Thompson & Morgan published this code itself, on its own pages, its newsletter or a feed we take from it.

use code
40%
OFF

Get 40% Off Garden Ready Plant Packs

Take 40% off all Garden Ready Plant Packs at Thompson & Morgan when you use this promo code.

  • store issued
How We Verify This Code
34
code confidence
worth a try
3 of 3
code checks worked
1
shopper tried it at checkout
in the last 14 days
1
shopper got the discount

Shoppers who tried it at checkout entered this code in their cart in the last 14 days, each checkout counted once. Shoppers who got the discount are the ones whose cart total went down when the code was applied.

Code confidence is our agents' read on how likely this code is to work. It isn't a strict measure of success probability: plenty of codes score low and still work at checkout. It was last recalculated .

Thompson & Morgan published this code itself, on its own pages, its newsletter or a feed we take from it.

use code
£3

Potted Perennials, Shrubs & Climbers for £3 Each

Shop Mix & Match Potted Perennials, Shrubs & Climbers at Thompson & Morgan and get them for £3 each with this coupon code.

  • store issued
How We Verify This Code
34
code confidence
worth a try
6 of 6
code checks worked
3
shoppers tried it at checkout
in the last 14 days
3
shoppers got the discount

Shoppers who tried it at checkout entered this code in their cart in the last 14 days, each checkout counted once. Shoppers who got the discount are the ones whose cart total went down when the code was applied.

Code confidence is our agents' read on how likely this code is to work. It isn't a strict measure of success probability: plenty of codes score low and still work at checkout. It was last recalculated .

Thompson & Morgan published this code itself, on its own pages, its newsletter or a feed we take from it.

use code
15%
OFF

Save Up to 15% Off at Thompson & Morgan

Take up to 15% off on eligible purchases at Thompson & Morgan with this coupon code.

  • community
How We Verify This Code
32
code confidence
worth a try
3 of 3
code checks worked
1
shopper tried it at checkout
in the last 14 days
1
shopper got the discount

Shoppers who tried it at checkout entered this code in their cart in the last 14 days, each checkout counted once. Shoppers who got the discount are the ones whose cart total went down when the code was applied.

Code confidence is our agents' read on how likely this code is to work. It isn't a strict measure of success probability: plenty of codes score low and still work at checkout. It was last recalculated .

Shoppers here submitted this code or reported back on how it went. It gets the same checks as every other code on this page.

use code
5%
OFF

5% Off Your First Order at Thompson & Morgan

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

  • saves ~5%
  • community
How We Verify This Code
28
code confidence
worth a try
53 of 53
code checks worked
86
shoppers tried it at checkout
in the last 14 days
86
shoppers got the discount
5% of the cart
median discount

Shoppers who tried it at checkout entered this code in their cart in the last 14 days, each checkout counted once. Shoppers who got the discount are the ones whose cart total went down when the code was applied.

The discount amount is measured on real cart totals before and after the code was applied, not taken from the advertised offer.

Code confidence is our agents' read on how likely this code is to work. It isn't a strict measure of success probability: plenty of codes score low and still work at checkout. It was last recalculated .

Shoppers here submitted this code or reported back on how it went. It gets the same checks as every other code on this page.

use code
20%
OFF

20% Off Plant, Bulb & Seed Orders

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

  • saves ~8%
  • community
How We Verify This Code
28
code confidence
worth a try
40 of 40
code checks worked
86
shoppers tried it at checkout
in the last 14 days
86
shoppers got the discount
8% of the cart
median discount

Shoppers who tried it at checkout entered this code in their cart in the last 14 days, each checkout counted once. Shoppers who got the discount are the ones whose cart total went down when the code was applied.

The discount amount is measured on real cart totals before and after the code was applied, not taken from the advertised offer.

Code confidence is our agents' read on how likely this code is to work. It isn't a strict measure of success probability: plenty of codes score low and still work at checkout. It was last recalculated .

Shoppers here submitted this code or reported back on how it went. It gets the same checks as every other code on this page.

use code
10%
OFF

10% Off Seed & Plant Orders

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

  • saves ~10%
  • community
How We Verify This Code
26
code confidence
worth a try
58 of 58
code checks worked
86
shoppers tried it at checkout
in the last 14 days
86
shoppers got the discount
10% of the cart
median discount

Shoppers who tried it at checkout entered this code in their cart in the last 14 days, each checkout counted once. Shoppers who got the discount are the ones whose cart total went down when the code was applied.

The discount amount is measured on real cart totals before and after the code was applied, not taken from the advertised offer.

Code confidence is our agents' read on how likely this code is to work. It isn't a strict measure of success probability: plenty of codes score low and still work at checkout. It was last recalculated .

Shoppers here submitted this code or reported back on how it went. It gets the same checks as every other code on this page.

use code
£3

Tulip Bulb Packs for £3 Each

expired

Shop Mix & Match Tulip Bulb Packs at Thompson & Morgan and get them for £3 each with this coupon code.

  • store issued
How We Verify This Code
17
code confidence
still worth a try
2 of 2
code checks worked

Code confidence is our agents' read on how likely this code is to work. It isn't a strict measure of success probability: plenty of codes score low and still work at checkout. It was last recalculated .

Thompson & Morgan published this code itself, on its own pages, its newsletter or a feed we take from it.

use code
12%
OFF

Save 12% on Orders $25+ at Thompson & Morgan

Take 12% off your Thompson & Morgan order of $25 or more when you use this code. Exclusions apply.

  • saves ~10%
  • community
How We Verify This Code
12
code confidence
still worth a try
2 of 2
code checks worked
3
shoppers tried it at checkout
in the last 14 days
3
shoppers got the discount
10% of the cart
median discount

Shoppers who tried it at checkout entered this code in their cart in the last 14 days, each checkout counted once. Shoppers who got the discount are the ones whose cart total went down when the code was applied.

The discount amount is measured on real cart totals before and after the code was applied, not taken from the advertised offer.

Code confidence is our agents' read on how likely this code is to work. It isn't a strict measure of success probability: plenty of codes score low and still work at checkout. It was last recalculated .

Shoppers here submitted this code or reported back on how it went. It gets the same checks as every other code on this page.

The cart has to reach $25 before this offer applies.

use code
10%
OFF

Take 10% Off Orders at Thompson & Morgan

Enjoy 10% off qualifying orders at Thompson & Morgan when you use this code.

  • saves ~10%
  • community
Offer Details
10% of the cart
median discount

The discount amount is measured on real cart totals before and after the code was applied, not taken from the advertised offer.

Shoppers here submitted this code or reported back on how it went. It gets the same checks as every other code on this page.

use code

Thompson & Morgan Shopping Info

Discounts

✓
Popup/Newsletter
Exclusive email-only deals and early sale access upon signup
✓
Loyalty
Gardening Club
✓
Refer a Friend
20% off

Shipping & Returns

✕
Free Shipping
✕
Intl Shipping
All items on this site are for delivery to UK addresses only.
✕
Free Returns
Window: 30 days · Fee: Customer cost
Final Sale
Perishable items such as plants, bulbs, bareroots and tubers have specific guarantee conditions instead of standard retu

Payments

Cards
Visa, Mastercard
Wallets
PayPal, Amazon Pay
BNPL
—
✓
Gift Cards

Thompson & Morgan Code Checks, Day by Day

Every Thompson & Morgan code check from the last 14 days, plotted by the day it ran. Green is how many came back working. Red is how many thompson-morgan.com would not accept. That is the checkout testing you did not have to sit through yourself.

agents@dealhack: ~/signals --store thompson-morgan.com --days 14
217
code checks run
217
checks where the code worked
100%
success rate
29
different codes tried
14 days · 217 code checks · 217 worked
workedpeak 48
would not applypeak 1
Daily coupon check results
DayCodes that workedCodes that would not applySuccess rate
480100%
250100%
270100%
290100%
210100%
120100%
70100%
110100%
70100%
40100%
80100%
70100%
40100%
70100%
where this data came from:
172 automated cart runs25 web search results20 published by the store

Last confirmed working on . Codes that stop clearing get pulled off this page automatically.

What These Numbers Mean

A code check is one result for one code. Most are our agents applying it to a real cart and reading the order total before and after; the rest come from tracked orders and from shoppers reporting back, as broken down above. Worked means the code was accepted and the total went down. Would not apply means thompson-morgan.com refused it on that cart. That is not the same as the code being fake. The usual reasons are:

  • It expired or the store switched it off after it was published.
  • It was single-use and had already been redeemed.
  • It only covers certain categories, brands or individual products.
  • The cart did not reach a minimum spend.
  • It is limited to new customers, a first order, or an email sign-up.
  • It cannot be combined with an active sale or another code.
  • It is tied to a different country, currency or membership.

So a code that failed one check can still work on your cart, and the success rate (checks that worked divided by all checks) is best read as how easily Thompson & Morgan discounts apply in general, not as a verdict on any single code. Hover any bar in the chart to see that day on its own.

When Thompson & Morgan Runs Sales

Recurring events worth timing an order around. Windows shift year to year, so treat them as a shopping calendar rather than a fixed date.

  1. late February to April
    Spring Planting Sale

    Features major discounts across bare root perennials, summer-flowering bulbs, and pre-planted hanging baskets as the gardening season ramps up.

  2. September to October
    Autumn Clearance Event

    Offers widespread price reductions on autumn-planting bulbs, winter bedding plants, and perennial stock to clear nursery fields before frost.

  3. late December to January
    Boxing Day & New Year Garden Sale

    Provides steep seasonal discounts on seed packets, gardening tools, greenhouse equipment, and early-bird plug plant reservations.

Locate the Code Box at thompson-morgan.com

The agents tested the code. Entering it is the one part we leave to you. Here's exactly where the Thompson & Morgan promo code goes at checkout.

Follow the shopper-submitted screenshots below to spot the Thompson & Morgan promo box and apply your code. Miss a step and even a working code does nothing, so the agents mapped every one for you.

Thompson & Morgan checkout page showing the Do you have a voucher code ? field and APPLY button

How to find

  1. 1.Go to the Thompson & Morgan homepage at thompson-morgan.com
  2. 2.Search for a product like 'seeds' and add an item to the basket
  3. 3.Click on the 'Basket' icon at the top right to view your shopping basket
  4. 4.Locate the 'Do you have a voucher code ?' section in the right-hand column
  5. 5.Enter your code into the text box and click 'APPLY'

How to use

Type your voucher code into the input field under 'Do you have a voucher code ?' and click the 'APPLY' button.

Before You Buy at Thompson & Morgan

What shoppers ask most about Thompson & Morgan.

›Can multiple promotional discount codes be applied to a single order?

Only one promotional code or voucher key can be used per transaction at checkout. Promotional vouchers are personal to each individual and cannot be stacked with other offers or applied retrospectively.

›Are there any items or product categories excluded from promotional codes?

Promotional codes never apply to third-party Marketplace vendor items, eGift vouchers, or select pre-cleared promotional lines unless explicitly stated otherwise in the offer terms.

›Why do different plant varieties arrive on different days?

Each plant variety or product is packed separately and dispatched at the optimum time for planting according to seasonal growth cycles. You will not incur any extra delivery charges for items shipped across multiple parcels.

›How does the Double Money Back Guarantee operate on select varieties?

For designated 'Grow the Best' varieties, customers who feel they have grown superior specimens can claim a double refund by submitting written details including soil type, location, and fertilizer use by September 30th.

How We Verify Thompson & Morgan Codes

Nothing goes up here on trust. A Thompson & Morgan code is collected, applied to a real thompson-morgan.com cart, dated the last time it took money off an order, scored on what came back, and pulled once it stops clearing. Promotions have no code to run through a checkout, so those are dated when they go live and dropped when they lapse. Here is how far that has got on this page, and every change the agents logged along the way.

agents@dealhack: ~/verify --store thompson-morgan.com --log
collect15 Thompson & Morgan offers listed here, every one a code you paste at checkout · 6 sent in by shoppers
test15 codes put through a live thompson-morgan.com cart · last run
confirm14 of 15 codes took money off an order in the last 7 days · most recently
score14 codes rated on how likely they are to work · last recalculated
measure5 codes with a discount measured on real carts
prune8 offers expire within the month · expired offers and dead codes drop off automatically

Recent Thompson & Morgan offer activity

Each entry is a change the agents logged on this page, newest first.

  1. 15 codes rescored on fresh results

    179 signals read · odds of working recalculated

  2. 7 codes worked on live thompson-morgan.com carts

    each one took a discount off a real order

  3. 2 new codes added

    now in the retest rotation

  4. 4 codes retested at checkout

    applied to a live thompson-morgan.com cart

  5. 2 new codes added

    1 sent in by shoppers

  6. 2 codes worked on live thompson-morgan.com carts

    each one took a discount off a real order

The agents keep retesting every Thompson & Morgan code on this page. No one here vouches for a code they did not watch work. If one slips through expired, take the next on the list. We keep backups. Want more codes we have watched work? See top-rated verified promo codes from every store.

Help Other Thompson & Morgan Shoppers

Not every Thompson & Morgan code reaches us from the store. 6 codes on this page were first submitted by shoppers. Wherever a code comes from, it still has to pass the same cart test before it goes up here.

10 hours
since a code sent in by a shopper last took money off a real thompson-morgan.com cart
40%
of the Thompson & Morgan codes on this page came from shoppers

Have a code we missed?

Send it over and the agents will run it through a real thompson-morgan.com cart. If it works, it lands here with the test behind it.

Did a code work for you?

Open any Thompson & Morgan code above and tell us whether it worked. It takes one tap, no sign-up, and a code that keeps failing gets pulled off the page.

Rate a code

Thompson & Morgan Customer Support

Need help with your shopping? Here's what's available for Thompson & Morgan when an order, return, or promo code needs a human.

Phone

0333 400 0033

Email

ccare@thompson-morgan.com

Live chat

Not available

Help center

www.thompson-morgan.com/contact-us

Telephone lines open Monday to Sunday 9am - 5pm.

About Thompson & Morgan

Who you're buying from.

Brand Profile

Websitethompson-morgan.com
Founded1855
HeadquartersIpswich, UK
Parent companyBranded Garden Products Limited
ReferenceWikipedia
Follow Thompson & Morgan for sale alerts and new arrivals

Did You Know

Founding

Thompson & Morgan was founded in 1855 by botanist William Thompson behind a baker's shop in Ipswich, England.

Flagship Product

The company showcases over 8,000 distinct gardening products, rare seeds, and young plants across its global platforms.

Manufacturing

Thompson & Morgan developed an exclusive automated cartridge plug system that air-prunes roots to build stronger lateral root structures.

Stores Like Thompson & Morgan: Today's Best Coupons

These 12 stores sell products similar to Thompson & Morgan. Below you can see the best coupon or deal available at each one today, so you can compare prices before you buy. 9 of them have a promo code you can copy at checkout.

Bass Pro Shops20% off

20% Off Vortex Products for Club Members

Get 20% off all Vortex products for Bass Pro Shops Club members when you use this code.

  • store issued
Get Code
King's Camo10% off

Get 10% Off Your Kings Camo Order

Shop Kings Camo and save 10% on eligible purchases with this coupon code.

  • saves ~$3.00
  • community
Get Code
Public Lands

Free One-Hour Curbside and In-Store Pickup

Get free one-hour curbside or in-store pickup on eligible, in-stock Public Lands items when you order online; start times, availability, and exclusions may vary by location.

  • store issued
Get Deal
Stio15% off

Get 15% Off Your Stio Order

Use this coupon code to save 15% on eligible Stio purchases.

  • community
Get Code
PartsVu5% off

5% Off Sitewide With Code

Use this coupon at PartsVu to save 5% on most sitewide items; standard exclusions and brand restrictions may apply.

  • saves ~$11.75
  • store issued
Get Code
Pelican10% off

Take 10% Off Your Pelican Order

Shop Pelican and save 10% on your order with this coupon code.

  • store issued
Get Code
Blade HQ

Free BHQ Flight Tag Keyring With Any Order

Receive a free BHQ "I Love Knives" Flight Tag Keyring on orders over $1 at Blade HQ when you enter this code during checkout.

  • store issued
Get Code
RTIC Outdoors15% off

Save 15% Off Sitewide at RTIC Outdoors

Unlock 15% off sitewide at RTIC Outdoors with this discount code.

  • community
Get Code
Solo Stove

Free $25 Mesa Accessory Pack With Select Tabletop Fire Purchases

Get a Mesa Accessory Pack added with eligible Mesa or Solo Stove tabletop fire bowl orders. The pack is listed as a $25 value and appears on qualifying product pages such as Mesa, Wave, Cinder, Geo, and Cube tabletop models.

  • store issued
Get Deal
Outdoor ResearchFree shipping

Free Shipping on Orders $125+ at Outdoor Research

Enjoy free standard shipping on qualifying Outdoor Research orders of $125 or more. Free shipping applies automatically on eligible orders meeting the minimum subtotal.

  • saves ~$14.57
  • store issued
Get Code
Midtown Umbrellas30% off

Clearance Sale: Save Up to 30% on Umbrellas

Shop Midtown Umbrellas' clearance section for marked-down patio umbrellas and related outdoor shade products. The page advertises savings of up to 30% on eligible clearance items.

  • store issued
Get Deal
Mammotion£50 off

Get £50 Off Your Mammotion Order

Apply this discount code to save £50 on your qualifying Mammotion order.

  • saves ~6%
  • community
Get Code

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