Contents
Description
Cirsium Grahamii is a biennial plant that belongs to the Asteraceae family. It is native to North America and can be found in the central and western parts of the United States. The plant has a distinct appearance with spiny leaves and a tall stem that can grow up to six feet tall. It produces purple or pink flowers that bloom in the summer months.
Taxonomic Information
| Domain | Eukarya |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Asterales |
| Family | Asteraceae |
| Genus | Cirsium |
Appearance
Cirsium Grahamii has spiny leaves that can grow up to eight inches long. The stem of the plant is also spiny and can grow up to six feet tall. The flowers of the plant are purple or pink and bloom in the summer months. The plant produces a taproot that can grow up to three feet deep.
Care Guide
Cirsium Grahamii requires moderate watering and should be fertilized once a month. The plant prefers well-draining soil and full sunlight. It is hardy in USDA zones 4 to 9.
Common Pests & Diseases
Cirsium Grahamii is susceptible to powdery mildew and rust. It can also be affected by aphids and spider mites.
Habitat
Cirsium Grahamii is native to North America and can be found in the central and western parts of the United States. It grows in prairies, meadows, and along roadsides.
Question and Answer
- Q: Is Cirsium Grahamii a perennial or biennial plant?
A: Cirsium Grahamii is a biennial plant. - Q: What is the preferred sunlight for Cirsium Grahamii?
A: Cirsium Grahamii prefers full sunlight. - Q: What are the common pests that affect Cirsium Grahamii?
A: Cirsium Grahamii can be affected by aphids and spider mites. - Q: What is the hardiness zone for Cirsium Grahamii?
A: Cirsium Grahamii is hardy in USDA zones 4 to 9.
Related Plants
- Cirsium arvense
- Cirsium horridulum
- Cirsium discolor
References
- “Cirsium grahamii.” Missouri Botanical Garden. Accessed June 10, 2021. https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=b431.
- “Cirsium grahamii.” Plant Database. Accessed June 10, 2021. https://www.wildflower.org/plants/result.php?id_plant=CIGR2.
- “Cirsium grahamii.” USDA Plants Database. Accessed June 10, 2021. https://plants.usda.gov/core/profile?symbol=CIGR2.
