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Description
Dieteria Asteroides, commonly known as the Colorado tansy aster or mountain aster, is a perennial herbaceous plant native to North America. It belongs to the Asteraceae family and can grow up to 2 feet tall. The plant produces numerous small flowers with lavender to purple petals and a yellow center that bloom in late summer to early fall.
Taxonomic Information
| Domain | Eukaryota |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Asterales |
| Family | Asteraceae |
| Genus | Dieteria |
Appearance
The leaves of Dieteria Asteroides are narrow, lance-shaped, and covered in fine hairs. They are arranged alternately on the stem and can grow up to 4 inches long. The flowers, which bloom from August to October, are small, daisy-like, and have lavender to purple petals surrounding a yellow center. They grow in clusters at the end of the stems and can be up to 1 inch in diameter. The plant produces small, dry fruits called achenes, each containing a single seed.
Care Guide
Dieteria Asteroides prefers well-draining soils, full sun, and moderate water. It is drought-tolerant once established and can handle a wide range of soil types. It is hardy in USDA zones 4 to 8. Fertilization is not necessary, but a light application of balanced fertilizer in the spring can help promote growth. Deadheading spent flowers can extend the blooming period and prevent self-seeding. Pruning can be done in the spring to control the size and shape of the plant.
Common Pests & Diseases
Dieteria Asteroides is generally pest-free, but it can occasionally be affected by spider mites or thrips. These can be treated with insecticidal soap or neem oil. The plant is also susceptible to fungal diseases such as powdery mildew or rust, which can be prevented by providing good air circulation and avoiding overhead watering.
Habitat
Dieteria Asteroides is native to the western United States and can be found in a variety of habitats, including meadows, forests, and rocky slopes. It is commonly found at elevations between 5,000 and 12,000 feet. It is an important food source for pollinators such as bees and butterflies.
Question and Answer
Q: Can Dieteria Asteroides be grown in containers?
A: Yes, Dieteria Asteroides can be grown in containers as long as they are large enough and have good drainage.
Q: Is Dieteria Asteroides invasive?
A: No, Dieteria Asteroides is not considered invasive.
Q: How often should I water my Dieteria Asteroides?
A: Water your Dieteria Asteroides deeply once a week, or more frequently during hot, dry weather.
Q: Should I deadhead my Dieteria Asteroides?
A: Deadheading spent flowers can help prolong the blooming period and prevent self-seeding.
Related Plants
- Dieteria bigelovii
- Dieteria canescens
- Dieteria glabrata
- Dieteria hoopesii
References
- USDA Plants Database: Dieteria asteroides
- Missouri Botanical Garden: Dieteria asteroides
- Colorado State University Extension: Mountain Aster (Dieteria asteroides)
