Contents
Description
Rudbeckia Subtomentosa Henry Eilers is a species of the sunflower family that is native to North America. It is commonly known as the sweet coneflower, and it produces yellow flowers with dark centers that bloom from early summer to early fall. The plant typically grows to a height of 3-6 feet and has a spread of 2-3 feet. Its leaves are dark green and hairy, and they grow up to 6 inches long.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Asterales |
| Family | Asteraceae |
| Genus | Rudbeckia |
Appearance
Rudbeckia Subtomentosa Henry Eilers has a tall, upright growth habit and produces bright yellow flowers with dark centers. The flowers are daisy-like in shape and can grow up to 3 inches in diameter. They bloom from early summer to early fall and are attractive to bees and butterflies. The plant’s leaves are dark green and hairy, and they are lance-shaped with serrated edges. The stems are also hairy and can be reddish in color. Overall, Rudbeckia Subtomentosa Henry Eilers is an attractive plant that adds color and texture to any garden.
Care Guide
Water
Rudbeckia Subtomentosa Henry Eilers prefers well-drained soil and does not like to be overwatered. Water the plant deeply once a week during the growing season, and reduce watering in the winter months.
Fertilization
Fertilize Rudbeckia Subtomentosa Henry Eilers in the spring with a balanced fertilizer. Follow the manufacturer’s instructions for application rates.
Soil
Rudbeckia Subtomentosa Henry Eilers prefers well-drained soil that is rich in organic matter. If your soil is heavy clay, amend it with compost or other organic matter to improve drainage.
Sunlight
Rudbeckia Subtomentosa Henry Eilers prefers full sun but can also tolerate partial shade.
Hardiness Zones
Rudbeckia Subtomentosa Henry Eilers is hardy in USDA zones 4-9.
Common Pests & Diseases
Rudbeckia Subtomentosa Henry Eilers is relatively pest and disease-free, but it can be susceptible to powdery mildew and root rot if it is overwatered. To prevent these issues, make sure the plant is not sitting in wet soil and provide good air circulation around the plant.
Habitat
Rudbeckia Subtomentosa Henry Eilers is native to the central and eastern United States, where it can be found growing in prairies, meadows, and along streambanks. It prefers well-drained soil and full sun.
Question and Answer
Q: How tall does Rudbeckia Subtomentosa Henry Eilers grow?
A: Rudbeckia Subtomentosa Henry Eilers typically grows to a height of 3-6 feet.
Q: What is the blooming season for Rudbeckia Subtomentosa Henry Eilers?
A: Rudbeckia Subtomentosa Henry Eilers blooms from early summer to early fall.
Q: Does Rudbeckia Subtomentosa Henry Eilers prefer full sun or partial shade?
A: Rudbeckia Subtomentosa Henry Eilers prefers full sun but can also tolerate partial shade.
Q: Is Rudbeckia Subtomentosa Henry Eilers susceptible to any pests or diseases?
A: Rudbeckia Subtomentosa Henry Eilers can be susceptible to powdery mildew and root rot if it is overwatered.
Related Plants
- Rudbeckia hirta (Black-Eyed Susan)
- Rudbeckia fulgida (Orange Coneflower)
- Rudbeckia laciniata (Cutleaf Coneflower)
References
- “Rudbeckia subtomentosa.” Missouri Botanical Garden. https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=279062&isprofile=0&.
- “Rudbeckia subtomentosa Henry Eilers.” Plant Finder. https://www.monrovia.com/plant-catalog/plants/1648/sweet-coneflower/.
- “Rudbeckia subtomentosa.” North Carolina State University. https://plants.ces.ncsu.edu/plants/rudbeckia-subtomentosa/.
