Milk Thistle Plants & Seeds.
Milk Thistle plants & seeds. Milk Thistle (Silybum marianum) is an annual or biennial plant which belongs to the Asteraceae family. It is native to the Mediterranean region, but is now found throughout the world. It grows 30 – 200cm tall, has red purple flowers and shiny pale green leaves with white veins. Milk Thistle has been used medicinally for over 2000 years for the support of liver and digestive health. This plant makes a great addition to the herb garden and does well in a dry, sunny spot.