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Description
Centaurea Stoebe is a perennial herbaceous plant that belongs to the family Asteraceae. It is also commonly known as Spotted Knapweed. This plant is native to Europe and Asia but has now become an invasive species in North America.
Taxonomic Information
| Domain | Eukaryota |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Asterales |
| Family | Asteraceae |
| Genus | Centaurea |
Appearance
Centaurea Stoebe can grow up to 3 feet tall and 2 feet wide. Its leaves are alternate, lanceolate, and gray-green in color, measuring 2-4 inches long and 0.5-1 inch wide. The flowers of this plant are purple-pink in color and have a spiky appearance. The blooms are about 1 inch in diameter and grow in clusters at the top of the stem. The plant blooms from June to September.
Care Guide
Centaurea Stoebe is a low-maintenance plant that grows well in full sun and well-draining soil. It is drought-tolerant and can survive in poor soil conditions. However, it is important to water the plant occasionally during dry spells. Fertilization is not necessary but can be done once a year in the spring using a balanced fertilizer. This plant is hardy in USDA zones 3-7 and can tolerate temperatures as low as -40°F. It is also resistant to most pests and diseases.
Common Pests & Diseases
Centaurea Stoebe is resistant to most pests and diseases. However, it can be susceptible to root rot if planted in poorly draining soil. It can also attract aphids, spider mites, and thrips. These can be controlled using insecticidal soap or neem oil.
Habitat
Centaurea Stoebe is native to Europe and Asia but has become an invasive species in North America. It can be found in disturbed areas such as roadsides, fields, and pastures. It prefers dry, rocky soil but can also grow in fertile soil.
Question and Answer
Q: Is Centaurea Stoebe poisonous?
A: No, Centaurea Stoebe is not poisonous.
Q: Can Centaurea Stoebe be grown in containers?
A: Yes, Centaurea Stoebe can be grown in containers that are at least 12 inches deep.
Q: Does Centaurea Stoebe attract bees?
A: Yes, Centaurea Stoebe is attractive to bees and other pollinators.
Q: How often should Centaurea Stoebe be watered?
A: Centaurea Stoebe is drought-tolerant and does not need frequent watering. Water the plant occasionally during dry spells.
Related Plants
- Centaurea Americana
- Centaurea Cyanus
- Centaurea Montana
- Centaurea Nigra
References
- “Centaurea stoebe.” Missouri Botanical Garden. https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=c153.
- “Centaurea stoebe.” USDA Natural Resources Conservation Service. https://plants.usda.gov/core/profile?symbol=CEST.
- “Invasive Species: Spotted Knapweed (Centaurea stoebe).” National Park Service. https://www.nps.gov/articles/spotted-knapweed.htm.
