20%
OFF
Up to 20% Off at The Sill
Take up to 20% off eligible items at The Sill with this promo code.
agents@dealhack$fetch the freshest The Sill codes…
Valid The Sill Promo Codes for September 2026
✓agent-verified & updated·
Today's Best The Sill Promo Codes:
15 offers in total9%
OFF
Take 9% Off Your Order at The Sill
Use this promo code to save 9% on qualifying orders at The Sill.
10%
OFF
10% Off Eligible Purchases at The Sill
Apply this discount code to save 10% on eligible purchases at The Sill.
$30
OFF
Weekend Plant Deal: Save Up to $30 on a Popular Summer Plant
The Sill's homepage links to a weekend offer featuring savings of up to $30 on a popular summer plant. The promotion appears as a time-limited site banner and is tied to a specific seasonal plant deal.
$70
OFF
Peak Summer Sale: Up to $70 Off Patio and Tropical Plants
The Sill highlights limited-time Peak Summer savings on patio picks, citrus trees, and tropical indoor plants. The homepage promotes discounts of up to $70 on eligible seasonal plant selections.
20%
OFF
Summer Solstice Sale: Up to 20% Off Sitewide
The Sill's Summer Solstice Sale offers up to 20% off plants, planters, and accessories across the site. Eligible savings are automatically reflected in the cart where applicable, and select marked-down products may stack with additional sale pricing.
10%
OFF
First Order Offer: 10% Off When You Sign Up
New email subscribers can receive 10% off their first order from The Sill. The offer is presented as an ongoing signup benefit for customers joining the merchant's email list.
15%
OFF
15% Off Corporate Gift Orders Over $10,000
The Sill offers 15% off qualifying corporate gifting orders over $10,000. The discount applies to the product total and excludes gift cards, shipping costs, insert fees, and taxes.
DEAL
Plant Sale: Automatic Markdowns on Select Plants and Bundles
The Sills sale section features marked-down plants, planters, and bundles with reduced prices displayed on eligible items. Examples include select plant bundles, planters, citrus plants, and indoor favorites with sale pricing shown directly on product listings.
DEAL
Free Grow Kit With Select Olive Trees and Meyer Lemon Trees
Select Olive Tree, Meyer Lemon, and Citrus Lovers Bundle purchases include a free GrowScripts care kit while supplies last. The qualifying products are grouped on The Sills Plant Care Kits collection page.
$30
OFF
Weekend Plant Deal: Save Up to $30 on Summers Most Popular Plant
The Sills sale page advertises a weekend offer with savings of up to $30 on a featured popular summer plant. The offer is presented as a limited-time homepage and sale-page promotion.
20%
OFF
Summer Solstice Sale: Up to 20% Off Sitewide
The Sills Summer Solstice Sale features up to 20% off indoor plants, outdoor plants, fruit trees, flowering vines, ceramic planters, and more. Eligible savings are reflected automatically where applicable.
10%
OFF
First Order Offer: 10% Off for Email Subscribers
New subscribers can receive 10% off their first order after signing up for The Sills email list. The offer is presented as an ongoing signup benefit on The Sills site.
15%
OFF
15% Off Corporate Gift Orders Over $10,000
The Sill offers a 15% discount on qualifying corporate gift orders over $10,000. The discount applies to the product total and excludes gift cards, shipping costs, insert fees, and taxes.
DEAL
Sale Section Deals: Markdowns on Select Plants and Bundles
The Sills sale collection features discounted plants and bundles with sale pricing displayed on eligible items. Examples on the page include reduced pricing on select plant duos, planter duos, and houseplant bundles.
The Sill Shopping Info
Discounts
✓
Popup/Newsletter
10% off your first order when you sign up for email or text alerts
✕
Loyalty
Shipping & Returns
✓
Free Shipping
Threshold: $99
✕
Intl Shipping
Ships exclusively within the continental United States.
✓
Free Returns
Window: 30 days · Fee: Free
Final Sale
Live plants feature a 30-day health guarantee but are otherwise non-returnable except for damage replacements.
Payments
Cards
Visa, Mastercard, American Express, Discover
Wallets
Apple Pay, Google Pay, Shop Pay
BNPL
Afterpay, Affirm
✓
Gift Cards
When The Sill 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.
- late NovemberBlack Friday & Cyber Monday Sale
Features sitewide discounts ranging from 15% to 30% off across popular houseplants, ceramic planters, and plant care accessories.
- late summer to autumnEnd of Season Plant Sale
Offers steep clearance price cuts up to $200 off select large houseplants, outdoor greenery, and retiring seasonal inventory.
- late springThe Sill Birthday Celebration
Marks the company founding anniversary with exclusive tiered promotions and special gift-with-purchase offers for newsletter subscribers.
Locate the Code Box at thesill.com
The agents tested the code. Entering it is the one part we leave to you. Here's exactly where the The Sill promo code goes at checkout.
Follow the shopper-submitted screenshots below to spot the The Sill promo box and apply your code. Miss a step and even a working code does nothing, so the agents mapped every one for you.
How to find
- 1.Go to thesill.com
- 2.Search for a product and add it to the cart
- 3.Click the cart icon or checkout button to proceed to the checkout page
- 4.Locate the 'Discount code or gift card' field in the Order Summary on the right side of the checkout page
How to use
Enter your code into the 'Discount code or gift card' field in the order summary on the right and click the 'Apply' button.
When Do New The Sill Deals Drop?
Our agents log every new The Sill promo code and deal the day it goes live, and record what the working ones took off a real cart. Here's how many landed each month over the past year, how deep the discounts ran, and when it pays to wait.
New The Sill offers per month
busiestavg 2/mo
3
2
0
3
2
0
0
1
4
1
2
| Month | New offers |
|---|---|
| 3 | |
| 2 | |
| 0 | |
| 3 | |
| 2 | |
| 0 | |
| 0 | |
| 1 | |
| 4 | |
| 1 | |
| 2 |
- Busiest month
- Jun
- 4 offers
- Monthly average
- 2
- new offers
- Quietest month
- Dec
- 0 offers
Before You Buy at The Sill
What shoppers ask most about The Sill.
›Can promo codes be applied to digital gift cards or past purchases?
Discount codes cannot be applied to digital gift card purchases or retroactively to orders placed before a sale began. Additionally, third-party artisan items and select clearance inventory are excluded from sitewide coupon promotions.
›Do you offer price adjustments if an item goes on sale after purchase?
If you purchased a full-price item and the price drops within 3 days of purchase, you can contact customer support to refund the difference. Items originally bought at a discount are ineligible for price adjustments.
›Can multiple promotional discount codes be stacked on a single order?
Only one promotional code or discount voucher can be applied per checkout transaction. Promotional coupons also cannot be combined with items already marked down on sale or promotional bundles.
›What happens to plant orders placed during freezing winter weather?
To ensure plants arrive healthy, orders headed to states experiencing freezing temperatures may be held up to two weeks until weather warms up. Orders are then expedited with protective sleeves and heat packs.
How We Verify The Sill Codes
Nothing goes up here on trust. A The Sill code is collected, applied to a real thesill.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 thesill.com --loglast change
collect15 The Sill offers listed here: 3 codes you paste at checkout, 12 promotions that need none · 1 sent in by shoppers
test3 codes put through a live thesill.com cart · last run
confirm3 codes have taken money off an order at some point · most recently
score1 code rated on how likely they are to work · last recalculated
pruneexpired offers and dead codes drop off this page automatically
Recent The Sill offer activity
Each entry is a change the agents logged on this page, dated to the day it happened.
20% off code rescored
11/100 code confidence · 2 signals
20% off code retested at checkout
applied to a live thesill.com cart
3 new codes added
1 sent in by shoppers
12 new promotions added
nothing to paste at checkout
20% off code worked on a live thesill.com cart
11/100 code confidence · 2 signals
The agents keep retesting every The Sill 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.
Help Other The Sill Shoppers
Not every The Sill code reaches us from the store. 1 code on this page was first submitted by a shopper. Wherever a code comes from, it still has to pass the same cart test before it goes up here.
39 hours
since a code sent in by a shopper was last run through a live thesill.com cart
15
The Sill codes and promotions on this page in total
Have a code we missed?
Send it over and the agents will run it through a real thesill.com cart. If it works, it lands here with the test behind it.
Did a code work for you?
Open any The Sill 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 codeThe Sill Customer Support
Need help with your shopping? Here's what's available for The Sill when an order, return, or promo code needs a human.
Phone
(888) 974-2079
Live chat
Available
Help center
About The Sill
Who you're buying from.
Did You Know
Founding
The Sill was founded in New York City in 2012 by Eliza Blank to make plant care more approachable for urban dwellers.
Origin Story
The concept for the brand sparked when the founder's mother recommended houseplants to cure homesickness in her first apartment.
Flagship Product
The Sill pioneered direct-to-consumer delivery of potted houseplants shipped safely in their original nursery grow pots.
Stores Like The Sill: Today's Best Coupons
These 12 stores sell products similar to The Sill. Below you can see the best coupon or deal available at each one today, so you can compare prices before you buy. All of them have a promo code you can copy at checkout.
4AllPromos$310 offScore $310 Off at 4AllPromos
Use this promo code to score $310 off on eligible 4AllPromos purchases.
- store issued
Get Code
ArtPix 3D20% offTake 20% Off Your ArtPix 3D Purchase
Save 20% on Any Order of 3 or More Glass Tiles by Using This ArtPix 3D Promo Code at Checkout
- community
Get Code
CanvasChamp$15 offSave $15 Off Orders Over $75 Sitewide
Get an additional $15 off CanvasChamp orders over $75 sitewide when you enter this code at checkout. Valid on base-price items only.
- saves ~45%
- store issued
Get Code
PrinterPix30% offGet an Extra 30% Off Sitewide at Printerpix
Take an extra 30% off sitewide discounts at Printerpix when you use this promo code.
- sitewide
- store issued
Get Code
Unifury25% off25% Off Any Purchase at Unifury
Save 25% on Any Order at Unifury by Using This Unifury Promo Code at Checkout
Get Code
Baskits10% offGet 10% Off Your Order at Baskits
Save 10% on eligible Baskits purchases when you use this code.
- community
Get Code
Cameo20% offSave 20% Off at Cameo
Apply this promo code to save 20% on eligible Cameo purchases.
- community
Get Code
Things Remembered20% offTake 20% Off at Things Remembered
Save 20% on eligible purchases at Things Remembered with this code.
- sitewide
- store issued
Get Code
Wicked Good Cupcakes10% offUp to 10% Off Sitewide at Wicked Good Cupcakes
Unlock up to 10% off sitewide at Wicked Good Cupcakes with this discount code.
- community
Get Code
Chatbooks20% off20% Off First Photo Book Order for New Customers
Get 20% off your first Chatbooks photo book order as a new customer when you apply this promo at checkout. Valid on first-time photo book purchases only and excludes gift cards and some accessories per site terms.
- community
Get Code
FruitBouquets.com15% offTake 15% Off Sitewide at Fruit Bouquets
Use this discount code to receive 15% off your sitewide purchase at Fruit Bouquets.
- sitewide
- store issued
Get Code
The Fruit Company10% offSave 10% on Select Items
Use this discount code to get 10% off select items at The Fruit Company.
- store issued
Get Code
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