Can you mail cannabis seeds in the US

Maybe a friend in another state wants a few of your favorite seeds, or you are wondering how seed banks ship orders at all. Can you mail cannabis seeds in the US? Yes, as of now. December 11, 2026 could change this, but nothing is 100% decided yet. The answer still has two layers. One is what federal law says the seed is. The other is what the carrier will accept. Both changed in important ways heading into 2027. This guide explains the rules for sending seeds, the difference between a person mailing a gift and a licensed business shipping orders, and why state law can still trip you up. It is general information for adults 21 and older, not legal advice.

Layer one: what is the seed under federal law

Until recently, many people treated cannabis seeds as hemp, because seeds contain very little THC and a 2022 DEA letter said seeds under the delta 9 limit fit the hemp definition. Congress rewrote that definition in November 2025. For seeds, the key date is December 11, 2026. After that, viable seeds from a plant above the total THC limit fall outside the hemp definition. If a seed is not hemp, it is generally treated as marijuana under federal law, and mailing marijuana is prohibited. Read our explainer on are cannabis seeds hemp under federal law for the statute.

Layer two: what the carrier allows

Every carrier publishes rules on what it will carry.

• Postal Service. USPS rules on mailing hazardous, restricted and perishable items state that marijuana and products containing it are not mailable, even between states that allow it. Hemp products that meet federal rules have been mailable with conditions. The status of a seed under federal law decides which side of that line it sits on.
• Private carriers. UPS, FedEx and others prohibit shipping items that are illegal under federal, state or local law, and their terms let them refuse or open packages.
• International mail. Sending seeds across a border brings in customs rules on both ends and the import laws of the destination country.

Carrier rules can be stricter than the law. A carrier can refuse a package that would be legal to own.

Sending seeds to a friend

People often assume a small, personal gift is different from a sale. Under federal mail rules it usually is not. If the seed is not hemp, the size of the package does not change what it is. A legal state on both ends does not help either, because the package travels through a federal system. There is also state law. Many states regulate the transfer of cannabis between adults, and some forbid giving away seeds at all, even where home grow is allowed. If you want to share genetics with a friend, the safest legal path is often to point them to a seller who can lawfully sell in their state, or to share in person where state law allows adult transfers.

How seed businesses fit in

Businesses face more scrutiny than individuals. They must follow carrier contracts, payment processor rules and the laws of the states they ship to. After December 11, sellers will have to decide which products still meet the federal hemp definition and where they can lawfully ship. That is why you may see changes to shipping policies, product lines or the states a seller serves in 2027.

Quick comparison

Common questions people get wrong

“It is fine if the package is small.” The rules do not set a size where the law stops applying.

“Both states are legal.” Federal law still governs the mail between them.

“I will just label it as something else.” We do not offer advice on disguising shipments. Mislabeling can create separate legal problems and does not make the contents legal.

“Seeds have no THC, so they are always hemp.” The new test looks at the parent plant, not only the seed.

Planning a grow in 2027

If you plan to grow in 2027, check three things before you order. First, confirm home cultivation is legal for you in your state and city. Second, read the current shipping policy of the seller. Third, check the federal status of seeds at the time you order, since Congress has seen bills to delay or repeal the new definition. Our USA seed law pages are a good starting point for state rules.

Where to check before you send anything

Rules change, so check primary sources rather than forum posts. The carrier’s own published list of prohibited items is the final word on what it will accept. Your state cannabis agency website explains whether adults may give or transfer seeds. For federal law, the Congressional Research Service publishes plain language summaries of the hemp definition and its effective dates. If you run a small business, talk to a lawyer before you ship anything across state lines, and keep written records of the advice you get.

Grow legally and responsibly

Home cultivation is only legal in some states, and each state sets its own plant limits, locking rules and rules about whether plants can be visible from a public place. You must be 21 or older to buy seeds from Kind Seed Co, and you should grow only where your state and city allow it. Check your state rules in our guide to the legal requirements for growing weed plants in your state before you plant. Keep plants and harvested flower locked away from children, pets and visitors, and never drive after using cannabis. This article is general information. It is not legal advice and it is not medical advice.

Final thoughts

Mailing cannabis seeds is not as simple as it was a few years ago. After December 11, 2026, the federal status of viable seeds and the carrier rules point in the same direction for most cannabis seeds. Learn your state law, read seller shipping policies and get legal advice before you send seeds to anyone.

Ready to start

Browse the full range in the Kind Seed Co shop or go straight to kindseed.com. Kind Seed Co sells only to adults 21 and older. Always follow the cannabis laws where you live.