Blue Thistle (Carthamus Caeruleus) is a perennial herb in the Asteraceae family with moderate care difficulty. It requires moderate watering and full sun light in USDA hardiness zones 7-10. This plant is safe for cats and dogs.

Carthamus caeruleus is a species of flowering plant in the family Asteraceae, native to the Mediterranean region, known for its vibrant blue thistle-like flowers.

Blue Thistle

Blue Thistle

Carthamus Caeruleus

Carthamus caeruleus is a species of flowering plant in the family Asteraceae, native to the Mediterranean region, known for its vibrant blue thistle-like flowers.

Quick Facts

Type
herb
Lifecycle
perennial
Care Difficulty
Moderate
Water Needs
Moderate
Light
Full Sun
Hardiness Zones
7-10

Safety

🐕
Pet Safe
👶
Child Safe
Non-Toxic

Growing Conditions

Soil Types:loamy, sandy, rocky
Indoor:No
Outdoor:Yes
Garden Use:ornamental, pollinator attractor

Care Calendar

Monthly care tasks for Blue 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

Blue Thistle
Blue Thistle detail

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Taxonomy

Family:Asteraceae
Genus:Carthamus