Milk Thistle Seeds

Milk Thistle Seeds

Size Price Savings Quantity
Packet $4.49
1 Ounce $13.69 ($13.69/ounce)
Select options
Select one or more options above to add to cart.
  • Medicinal plant with antioxidant properties
  • Produces pretty red/purple flowers
  • Prized for medicinal purposes
  • NOTE: Milk Thistle cannot be shipped to Washington State
View full details



Life Cycle Annual
Planting Season Spring
Growth Habit Upright

Flavor Profile Bitter; Earthy; Slight Hint of Sweetness
Plant Characteristics Attracts Bees, Attracts Butterflies, Attracts Hummingbirds, Attracts Pollinators, Easy to Grow & Maintain
Use Culinary, Medicinal
Growing Conditions Drought Tolerant, Heat Tolerant, Outdoor
Harvest Advantages Dried

About Milk Thistle Seeds

Silybum marianum

Also known as Marian Thistle, Mary Thistle, Saint Mary's Thistle, Variegated Thistle

Grow Heirloom Herbs - Plant Milk Thistle Seeds

Familiar to gardeners and laymen across the globe, Milk Thistle was once native to southern Europe, but is now widely distributed around the world. The good news is that it grows anywhere, the bad news is that some consider it nothing more than a weed. Known by many names, including Saint Mary's Thistle and Scotch Thistle, it produces a lovely purple bloom in the spring and summer and is commonly used in teas and medicinal remedies.

This item may be considered invasive in specific areas of the USA. Please check with your local agricultural office for more information.

Planting Information

Planting Milk Thistle Seeds

Planting Season Spring
Seed Prep Requires Light
Sowing Method Direct Sow
Light Requirement Full Sun, Partial Shade
Planting Depth 1/4 inch
Plant Spacing 24 to 36 inches
Water Needs Low
Hardiness Zones 5, 6, 7, 8, 9
View our Milk Thistle Planting Guide to learn more.


Amount Avg Seed Count Recommended Coverage
Packet 79 Up to 30 Sq. Ft
1 Ounce 1,120 Up to 150 Sq. Ft