Rough Star-thistle (Centaurea Aspera) is a annual or biennial herb in the Asteraceae family with easy care difficulty. It requires drought-tolerant watering and full sun light in USDA hardiness zones 7-10. This plant is safe for cats and dogs.

Centaurea aspera, known as rough star-thistle, is a species of flowering plant in the Asteraceae family native to the Mediterranean region and found in Europe and parts of the United States.

Rough Star-thistle

Rough Star-thistle

Centaurea Aspera

Centaurea aspera, known as rough star-thistle, is a species of flowering plant in the Asteraceae family native to the Mediterranean region and found in Europe and parts of the United States.

Quick Facts

Type
herb
Lifecycle
annual or biennial
Care Difficulty
Easy
Water Needs
drought-tolerant
Light
Full Sun
Hardiness Zones
7-10

Safety

🐕
Pet Safe
👶
Child Safe
Non-Toxic

Growing Conditions

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

Care Calendar

Monthly care tasks for Rough Star-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

Rough Star-thistle
Rough Star-thistle detail

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Taxonomy

Family:Asteraceae
Genus:Centaurea
Rough Star-thistle Care Guide - How to Grow Centaurea Aspera | PlantPeek