Plain Jane Promo Codes & Coupons February 2026

Plain Jane promo codes often fail due to expired status, ineligible cart items like bundles or sale products, or case-sensitive entry errors showing "Invalid code" or "Code not valid for selected items." Common scenarios include codes like AUTUMN or HEMP15 not applying to bundles.

To troubleshoot your promo code issues:

1. Check code details for exclusions (e.g., not for holiday items or bundles)
2. Log in to your account—codes may be account-specific
3. At checkout, paste the code exactly (e.g., HEMP15 uppercase) in the promo box below your cart summary
4. Remove items one by one if error persists to identify exclusions
5. Refresh the page if needed

Limitations: Codes are typically single-use per account and may expire quickly, like seasonal codes such as AUTUMN.

Pro tip: Use verified codes from trusted coupon sites that track real-time verifications to avoid expired or invalid codes.

No, Plain Jane does not allow stacking multiple promo codes; only one code applies per order. Users report errors like "Invalid code" when trying to apply a second code after the first.

Plain Jane's system prioritizes the highest discount, such as 15% sitewide over smaller ones. To maximize savings:

1. Apply your best code (e.g., 15% off like HEMP15) first at checkout
2. Skip adding more—combine with newsletter sign-up for email-only deals instead

Restrictions: No stacking on bundles or during limited promos; affects all carts.

Pro tip: Sign up for Plain Jane's newsletter pre-checkout for an exclusive code that often beats public ones.

Most Plain Jane promo codes, like 15% sitewide offers (HEMP15, AUTUMN), do not apply to sale or clearance items, triggering "Not valid for selected items" errors. User verifications show exclusions for discounted CBD flower or Delta 8 bundles, as codes typically target full-price items only.

To determine if your code works on sale items:

1. Review "Current Offers" on Plain Jane's site for fine print like "excludes sale"
2. Remove sale items from your cart
3. Apply the code to see if it works
4. Try adding sale items back (though this rarely works)

Patterns: Most verified codes focus on regular-priced flower; sale items typically get separate flash deals.

Pro tip: Shop full-price during promos and wait for bundle-specific codes for the best overall value.

Yes, Plain Jane offers first-time customer codes like newsletter sign-ups for 15% off sitewide or ZERO for a free 1g flower sample, but they're one-time use per account. New users report instant access via email after signup.

To get first-time customer discounts:

1. Sign up at plainjane.com for exclusive first-order promo
2. Create an account and add items to your cart
3. Enter the code at checkout (e.g., from welcome email)

Limitations: These codes are single-use, often exclude bundles, and supplies may be limited for samples.

Pro tip: Use ZERO on your first cart under $50 for free shipping-eligible samples before making bigger purchases.

"Invalid code" or "Code expired" at Plain Jane checkout happens when codes like AUTUMN are account-specific, already used once, or pulled from unverified sites, despite recent listings. Seasonal codes like AUTUMN may have limited usage periods.

To resolve this issue:

1. Clear browser cache/cookies or try incognito mode
2. Log out and log back in, or create a new account if the code is one-use
3. Look for fresh codes from verified coupon sites

Pro tip: Copy-paste verified codes from coupon sites that show recent successful uses for the best chance of success.

The "Not valid for selected items" error occurs because most Plain Jane codes exclude bundles. Users with Delta 8 or CBD bundles report this on 15% sitewide codes like HEMP15.

To fix this issue:

1. Go to your cart and remove the bundle
2. Apply the code (it should update the subtotal instantly)
3. Consider re-adding the bundle or buying items separately
4. Check for bundle-only codes in the Plain Jane newsletter

Pro tip: Build bundles post-discount or look for bundle-specific codes on cannabis coupon sites for HEMP15 variants.

AUTUMN is single-use and account-specific at Plain Jane. If you've tried it once, it will show "Invalid code" when tied to your login.

If you've already used this code:

1. Try using a different code like HEMP15 (15% off)
2. Log out and try incognito mode with a new email
3. Create a new account if necessary

Pro tip: Track one-use codes via coupon verification sites to rotate fresh 15% sitewide discounts when available.

Enter HEMP15 exactly as uppercase in Plain Jane's promo box at checkout—it auto-applies 15% sitewide if eligible, but typos or cache issues can prevent updates.

To properly apply the code:

1. Copy-paste HEMP15 (avoid typing to prevent errors)
2. Hit "Apply"
3. Wait a few seconds for the subtotal to refresh
4. Clear cache if stuck (Ctrl+Shift+R)

Restrictions: One code per order, excludes bundles/sale items but works on all other products.

Pro tip: Use the mobile app or desktop incognito mode for glitch-free entry, and consider combining with newsletter perks for additional savings.

Plain Jane may occasionally offer discount codes, but currently, there are none available. However, customers can still save money by taking advantage of other promotional offers or sales available on the website, or by using credit card points to make purchases.

On average, Plain Jane provides 2.8 discount coupons each month. Based on historical data, the average time between Plain Jane coupon releases is approximately 11 days. However, this is subject to change and may depend on various factors such as seasonal promotions, product launches, or other marketing initiatives. To stay informed about upcoming discounts and promotions, we recommend checking Plain Jane website regularly, subscribing to their email newsletter, and following them on social media.

Plain Jane is offering 19 working store-wide codes, and they are also offering 20 additional discount codes with a max discount of 25% off.

SimplyCodes is the #1 provider of discount codes for your favorite retailers, such as Plain Jane. As the only crowdsourced platform for coupon codes, we have all the latest and accurate codes for over 200,000 stores. Save time and avoid expired codes by checking SimplyCodes for the latest Plain Jane discount codes.

On average, Plain Jane offers 2.8 coupon codes per month. As of today, Plain Jane has 20 active coupons and offers.

Plain Jane offers discounts during Black Friday, where shoppers can save extra on limited-time sales. Check out their deals here!