Mysterious seed packages from China are showing up in Texas homes. Officials warn they could threaten farms and gardens. If you get one, don’t open it—keep it sealed and call the Texas Department of Agriculture.

HOUSTON – Both the U.S. and Texas departments of Agriculture are advising people not to plant any unsolicited seeds they may have gotten in the mail. According to Texas Agriculture Commissioner Sid Miller, these seed packets, falsely labeled as jewelry, come from China and have been mailed to people all over the country, including Texas. People are being advised not to plant the seeds as it could contain a harmful invasive plant that could cause damage to the Texas ecosystem, Miller said. “An invasive plant species might not sound threatening, but these small invaders could destroy Texas agriculture. The TDA is asking anyone who may have received a packet to report it immediately at SITC.Mail@aphis.usda.gov.