LetterAgent
Mail physical letters by just asking your AI assistant.
LetterAgent prints letters only, with no inserts, so seeds can't go through LetterAgent. Mailing seeds within the US is generally fine in small packets, but many states restrict certain species and some require labels or permits. International seed mail is a different story: many countries require phytosanitary certificates or ban seeds outright. Label every packet with the species and variety.
| Domestic (within the US) | International | |
|---|---|---|
| General rule | Small seed packets are generally fine to mail | Often restricted, permitted, or banned depending on the country |
| Labeling | Label with species and variety; some states require more | Usually must declare contents on the customs form |
| Restricted species | Many states restrict noxious weeds and invasive species | Many countries ban seeds of invasive or agricultural-pest species |
| Paperwork | Usually none for common garden seeds | Often a phytosanitary certificate from an agriculture department |
For ordinary garden seeds mailed between states, there is usually nothing to do beyond packing and labeling them. The exceptions matter, though. States maintain lists of noxious weeds that cannot be shipped in, and some states require seed packets to carry specific labels, like the kind of seed, variety, and lot information. If you are mailing anything unusual, like wildflower mixes, agricultural seed, or seeds of plants that spread aggressively, check the destination state's agriculture department first. Seed swaps between gardeners are the most common reason people mail seeds, and common vegetable and flower seeds almost never cause trouble.
Because seeds carry the risk of invasive species and plant diseases, and countries guard their agriculture closely. Many countries require an official phytosanitary certificate stating the seeds are pest-free, and some ban seed imports by individuals entirely. A few countries are famously strict: Australia and New Zealand, for example, inspect or refuse seed shipments routinely. Customs can and does seize undeclared seeds, and a seized package is the good outcome; fines are possible too. Always declare seeds on the customs form and check the destination country's rules before mailing.
Seeds are crushed easily, so do not mail them loose in a paper envelope. Put each variety in its own small sealed bag or packet, label it with the species and variety name, and cushion the packets inside a padded mailer or a small rigid box. Moisture is the other enemy: a sealed bag keeps seeds dry in transit. For seed swaps, include a note with growing details; the recipient will thank you, and clear labeling keeps your packets out of trouble if they are ever inspected.
Ready to mail it? Send your letter with LetterAgent - describe it to your AI assistant, approve the exact quoted price, and it's printed and mailed.
LetterAgent is a working name. Prices include print, postage, and our service fee. US prices in USD, Canadian prices in CAD (Canadian prices exclude applicable sales tax, added at checkout). Currently in private testing.
Need help? Ask your assistant. It can check a job's status any time. If it ever can't handle something: hello@getletteragent.com