Why mystery seed packets from China keep landing in US mailboxes

Representative image (Courtesy: AI generated)

Across parts of the United States, people are again finding small packets of seeds in their mailboxes that they never ordered. The packages usually appear to come from China. They often have vague labels, no return address, and no explanation.

For most recipients, the first reaction is confusion. The second is concern.

This has happened before. In earlier waves, federal and state agriculture agencies investigated similar deliveries and came to a common conclusion. The shipments are most likely linked to a “brushing” scam.

In this kind of scam, online sellers mail cheap items to random addresses so they can generate tracking numbers. That allows them to post fake reviews as “verified buyers” on shopping platforms. Seeds are a popular choice because they cost very little and are easy to ship internationally. The people receiving them are not the intended customers. Their addresses are simply being used.

On its own, that makes the packages an annoyance. The real problem starts if someone decides to plant the seeds.

Agriculture officials in the US say unlabelled seeds can carry invasive plants, pests, or plant diseases. Even a few seeds can pose a risk if they take root. Invasive species can spread quickly and are difficult to control once established. Some plant pathogens can damage crops or native plants and move through soil or water systems.

That is why authorities are clear in their advice. Do not plant the seeds. Do not compost them. Do not scatter them in a garden or yard.

Identifying seeds by sight is almost impossible for non-specialists. In earlier cases, some packets turned out to contain common plants, but officials say that does not make them safe. The inspection process matters, and these seeds bypass it entirely.

State agriculture departments are asking people to seal the packets in a bag and report them. Many states have procedures in place to collect the seeds or give instructions on safe disposal. Simply throwing them in the trash can still carry some risk if seeds escape.

Officials are also trying to calm fears about more extreme explanations. Investigations so far have found no evidence of a deliberate biological attack. The pattern fits commercial fraud, not sabotage. Still, the shipments highlight how easily small items can slip through international mail systems.

What arrives as a strange envelope at the door can create real problems if handled casually. That is why the message from authorities remains simple: do not plant the seeds, and report the package.