Contents
Description
Cirsium Purpuratum, also known as Purple Thistle or Streambank Thistle, is a perennial plant that belongs to the Asteraceae family. It is native to North America and can be found growing in wet meadows, stream and river banks, and other wet habitats. The plant can grow up to 4 feet tall and has a spread of 2-3 feet. It blooms from July to September, producing beautiful purple flowers that attract bees, butterflies, and other pollinators.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Asterales |
| Family | Asteraceae |
| Genus | Cirsium |
Appearance
Cirsium Purpuratum has a sturdy stem that is covered in small spines. The leaves are lance-shaped and deeply lobed, with a green color on the upper side and a whitish color on the underside. The flowers are tubular and have a deep purple color, measuring about 2 inches in diameter. They are arranged in clusters at the top of the stem and bloom from mid-summer to early fall. The plant produces numerous seeds that are dispersed by the wind.
Care Guide
Cirsium Purpuratum is a low-maintenance plant that requires minimal care. Here are some tips for growing this beautiful plant:- Water: The plant prefers moist soil, so water it regularly, especially during dry spells.- Fertilization: The plant does not require much fertilization. You can add a slow-release fertilizer to the soil in the spring.- Soil: The plant prefers well-drained soil that is rich in organic matter.- Sunlight: The plant prefers full sun but can also tolerate some shade.- Hardiness Zones: The plant is hardy in USDA zones 4-8.
Common Pests & Diseases
Cirsium Purpuratum is relatively resistant to pests and diseases. However, it may occasionally be affected by spider mites, aphids, and powdery mildew. To control these issues, you can use insecticidal soap or neem oil. Avoid overwatering the plant, as this can lead to root rot.
Habitat
Cirsium Purpuratum is native to North America and can be found growing in wet meadows, stream and river banks, and other wet habitats. The plant is well-suited to wetland restoration and can help stabilize soil and prevent erosion. It also provides important habitat for pollinators and other wildlife.
Question and Answer
Q: Is Cirsium Purpuratum poisonous to humans or pets?
A: No, Cirsium Purpuratum is not poisonous to humans or pets.
Q: Can I grow Cirsium Purpuratum in a container?
A: While it is possible to grow Cirsium Purpuratum in a container, it is not recommended. The plant has a deep taproot that requires ample space to grow.
Q: How often should I prune Cirsium Purpuratum?
A: You do not need to prune Cirsium Purpuratum, as the plant will naturally die back in the fall.
Q: Can I propagate Cirsium Purpuratum from cuttings?
A: No, Cirsium Purpuratum cannot be propagated from cuttings. Instead, you can collect the seeds in the fall and sow them in the spring.
Related Plants
– Cirsium Altissimum- Cirsium Arvense- Cirsium Discolor- Cirsium Hillii- Cirsium Horridulum
References
– “Cirsium Purpuratum.” Missouri Botanical Garden. Accessed August 9, 2021. https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=h300.- “Cirsium Purpuratum.” Lady Bird Johnson Wildflower Center. Accessed August 9, 2021. https://www.wildflower.org/plants/result.php?id_plant=CIPU3.
