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Description
Helianthus Mollis, commonly known as the Ashy Sunflower or Hairy Sunflower, is a perennial herbaceous plant that belongs to the Asteraceae family. Native to the central and eastern United States, this plant can grow up to 6 feet tall and 3 feet wide. It has fuzzy, gray-green leaves and large, bright yellow flowers that bloom in the late summer or early fall. The flowers can reach up to 4 inches in diameter and have a distinctive brown center.
Taxonomic Information
| Domain | Eukarya |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Asterales |
| Family | Asteraceae |
| Genus | Helianthus |
Appearance
Helianthus Mollis has fuzzy, gray-green leaves that are 3-6 inches long and 1-2 inches wide. The stems are rough and hairy, and can grow up to 6 feet tall. The large, bright yellow flowers bloom in the late summer or early fall and can reach up to 4 inches in diameter. They have a distinctive brown center and are a favorite of bees and butterflies.
Care Guide
Water
Helianthus Mollis prefers moist soil, but can tolerate some drought once established. Water deeply and regularly, especially during hot and dry periods.
Fertilization
Fertilize Helianthus Mollis once in the spring with a balanced fertilizer.
Soil
This plant prefers well-draining soil that is rich in organic matter. It can tolerate a range of soil types, including sandy and clay soils.
Sunlight
Helianthus Mollis prefers full sun, but can tolerate partial shade.
Hardiness Zones
This plant is hardy in USDA zones 4-9.
Common Pests & Diseases
Helianthus Mollis is generally pest and disease resistant, but can be affected by powdery mildew, rust, and leaf spot. To prevent these issues, avoid overhead watering and provide good air circulation around the plant.
Habitat
Helianthus Mollis is native to the central and eastern United States, where it can be found growing in prairies, meadows, and open woods. It prefers well-draining soil and full sun.
Question and Answer
Q: Can Helianthus Mollis be grown in containers?
A: Yes, it can be grown in large containers, but it may not reach its full height potential.
Q: Is Helianthus Mollis deer resistant?
A: Yes, it is relatively deer resistant.
Q: Can Helianthus Mollis be propagated by division?
A: Yes, it can be propagated by division in the spring or fall.
Q: Is Helianthus Mollis a good cut flower?
A: Yes, the flowers can last up to 2 weeks in a vase.
Related Plants
– Helianthus annuus (Common Sunflower)- Helianthus decapetalus (Thinleaf Sunflower)- Helianthus maximiliani (Maximilian Sunflower)- Helianthus paradoxus (Prairie Sunflower)
References
– “Helianthus Mollis.” Missouri Botanical Garden. Accessed 16 September 2021.
