Contents
Description
Heterotheca Sessiliflora is a flowering plant that belongs to the Asteraceae family. It is commonly known as the Oregon sunflower, and it is native to the western United States. The plant has a shrub-like appearance and can grow up to 3 feet tall. It produces yellow flowers that bloom from July to September.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Asterales |
| Family | Asteraceae |
| Genus | Heterotheca |
Appearance
Heterotheca Sessiliflora has a woody stem and produces lance-shaped leaves that are green and hairy. The leaves can grow up to 3 inches long and 1 inch wide. The flowers are yellow and have a diameter of around 1 inch. They grow in clusters at the top of the stem and have a brown center. The plant blooms from July to September and can grow up to 3 feet tall.
Care Guide
Water
Heterotheca Sessiliflora prefers well-draining soil and does not require a lot of water. Water the plant deeply once a week during the growing season and reduce watering during the winter months.
Fertilization
Fertilize Heterotheca Sessiliflora once a month during the growing season with a balanced fertilizer. Do not fertilize during the winter months.
Soil
The plant prefers well-draining soil that is slightly acidic. Add organic matter to the soil to improve its quality.
Sunlight
Heterotheca Sessiliflora requires full sun to grow and bloom properly.
Hardiness Zones
The plant is hardy in USDA zones 7 to 10.
Common Pests & Diseases
Heterotheca Sessiliflora is susceptible to aphids, spider mites, and whiteflies. It can also be affected by powdery mildew and rust. To prevent pests and diseases, ensure that the plant is grown in well-draining soil and receives adequate sunlight and water.
Habitat
Heterotheca Sessiliflora is native to the western United States and can be found in a variety of habitats, including grasslands, meadows, and open forests. It prefers well-draining soil and full sun.
Question and Answer
Q: How often should I water Heterotheca Sessiliflora?
A: Water the plant deeply once a week during the growing season and reduce watering during the winter months.
Q: What are the common pests and diseases that affect Heterotheca Sessiliflora?
A: The plant is susceptible to aphids, spider mites, whiteflies, powdery mildew, and rust.
Q: What is the ideal soil pH for Heterotheca Sessiliflora?
A: The plant prefers slightly acidic soil.
Q: What is the blooming season for Heterotheca Sessiliflora?
A: The plant blooms from July to September.
Related Plants
- Heterotheca Villosa
- Heterotheca Fulcrata
- Heterotheca Oregona
- Heterotheca Inuloides
References
- “Heterotheca sessiliflora.” Missouri Botanical Garden. Accessed March 4, 2021. https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=277436&isprofile=0&basic=heterotheca%20sessiliflora.
- “Heterotheca sessiliflora.” Plant Database. Accessed March 4, 2021. https://pfaf.org/user/Plant.aspx?LatinName=Heterotheca+sessiliflora.
- “Oregon sunflower.” USDA Plants Database. Accessed March 4, 2021. https://plants.usda.gov/home/plantProfile?symbol=HISE3.
