Milk Thistle (Silybum Marianum) is a biennial herb in the Asteraceae family with easy care difficulty. It requires moderate watering and full sun light in USDA hardiness zones 5-9. This plant is safe for cats and dogs.

Silybum marianum is a biennial or annual herbaceous plant in the family Asteraceae, known for its medicinal properties and distinctive purple flowers with white-veined leaves.

Milk Thistle

Milk Thistle

Silybum Marianum

Silybum marianum is a biennial or annual herbaceous plant in the family Asteraceae, known for its medicinal properties and distinctive purple flowers with white-veined leaves.

Quick Facts

Type
herb
Lifecycle
biennial
Care Difficulty
Easy
Water Needs
Moderate
Light
Full Sun
Hardiness Zones
5-9

Safety

🐕
Pet Safe
👶
Child Safe
Non-Toxic

Growing Conditions

Soil Types:loamy, sandy, well-drained
Indoor:No
Outdoor:Yes
Garden Use:medicinal herb, pollinator attractor, ornamental

Care Calendar

Monthly care tasks for Milk Thistle

Jan
Prune
Feb
Fertilize
Mar
Repot
Apr
Water+
May
...
Jun
...
Jul
...
Aug
...
Sep
...
Oct
...
Nov
...
Dec
...

Expert Care Tips

Pro tips from botanists and plant experts

Watering Tip

Check soil moisture by inserting your finger 1 inch deep. Water only when the top layer feels dry to prevent overwatering.

Humidity Trick

Group plants together to create...

Growth Hack

Rotate your plant every...

Photo Gallery10+ photos

Milk Thistle
Milk Thistle detail

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Taxonomy

Family:Asteraceae
Genus:Silybum