Contents
Description
The Helianthus Atrorubens Monarch is a perennial plant that belongs to the Asteraceae family. It is also known as the Monarch Sunflower and the Purpledisk Sunflower. This sunflower variety is native to the central and eastern regions of North America.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Asterales |
| Family | Asteraceae |
| Genus | Helianthus |
Appearance
The Helianthus Atrorubens Monarch has a height of about 3-6 feet and a spread of 1-2 feet. The stems are tough and hairy, and the leaves are alternately arranged and oval-shaped with a rough texture. The flowers are large and daisy-like with a diameter of 3-4 inches. The center of the flower has dark purple disk florets, and the petals are a bright yellow color. The flowers bloom in late summer to early fall.
Care Guide
The Helianthus Atrorubens Monarch prefers well-draining soil that is rich in organic matter. It requires full sun exposure and should be watered regularly, especially during the growing season. Fertilize the plant with a balanced fertilizer once a month during the growing season. The plant is hardy in USDA zones 4-9.
Common Pests & Diseases
The Helianthus Atrorubens Monarch is susceptible to fungal diseases such as rust and powdery mildew. It is also prone to aphids and spider mites. To prevent these issues, ensure good air circulation around the plant and avoid overhead watering. Use neem oil or insecticidal soap to control pests.
Habitat
The Helianthus Atrorubens Monarch is native to the central and eastern regions of North America. It grows in prairies, meadows, and open woods. It is also commonly found along roadsides and in disturbed areas.
Question and Answer
Q: How tall does the Helianthus Atrorubens Monarch grow?
A: The plant can grow up to 3-6 feet tall.
Q: What kind of soil does the Helianthus Atrorubens Monarch prefer?
A: The plant prefers well-draining soil that is rich in organic matter.
Q: What are the common pests that affect the Helianthus Atrorubens Monarch?
A: The plant is prone to aphids and spider mites.
Q: What is the blooming season for the Helianthus Atrorubens Monarch?
A: The plant blooms in late summer to early fall.
Related Plants
- Helianthus giganteus
- Helianthus maximiliani
- Helianthus salicifolius
- Helianthus decapetalus
References
- “Helianthus atrorubens,” Missouri Botanical Garden, accessed September 10, 2021, https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=a694.
- “Helianthus atrorubens,” Lady Bird Johnson Wildflower Center, accessed September 10, 2021, https://www.wildflower.org/plants/result.php?id_plant=heat.
- “Monarch Sunflower – Helianthus atrorubens,” Illinois Wildflowers, accessed September 10, 2021, https://www.illinoiswildflowers.info/prairie/plantx/mon_sunfx.htm.
