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Description
Oenothera Howardii, commonly known as Howard’s evening primrose, is a flowering plant native to the Great Plains of North America. It is a hardy perennial that can grow up to 2 feet tall and 3 feet wide. The plant features bright yellow flowers that bloom from late spring to mid-summer. It is a popular choice among gardeners due to its low maintenance and stunning appearance.
Taxonomic Information
| Domain | Eukaryota |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Myrtales |
| Family | Onagraceae |
| Genus | Oenothera |
Appearance
Oenothera Howardii has lance-shaped leaves that are up to 6 inches long and 1 inch wide. The leaves are green in color and have a slightly hairy texture. The plant produces bright yellow flowers that are up to 3 inches in diameter. The flowers have four petals and a prominent yellow center. They bloom from late spring to mid-summer and attract bees and butterflies.
Care Guide
Oenothera Howardii is a low-maintenance plant that is easy to care for. Here are some tips to help you care for your Howard’s evening primrose:Water: Water the plant deeply once a week during the growing season. Reduce watering during the winter months.Fertilization: Fertilize the plant with a balanced fertilizer once a month during the growing season.Soil: Plant Oenothera Howardii in well-draining soil that is rich in organic matter.Sunlight: Plant the plant in full sun to partial shade.Hardiness Zones: Oenothera Howardii is hardy in USDA zones 5-9.
Common Pests & Diseases
Oenothera Howardii is generally resistant to pests and diseases. However, it may be susceptible to fungal diseases such as powdery mildew and rust. To prevent these diseases, avoid overhead watering and provide good air circulation around the plant. If the plant does become infected, treat it with a fungicide.
Habitat
Oenothera Howardii is native to the Great Plains of North America. It can be found growing in prairies, meadows, and along roadsides. The plant prefers well-draining soil and full sun to partial shade.
Question and Answer
Q: How often should I water my Oenothera Howardii?
A: Water the plant deeply once a week during the growing season. Reduce watering during the winter months.Q: What kind of soil does Oenothera Howardii prefer?
A: Plant Oenothera Howardii in well-draining soil that is rich in organic matter.Q: What are the common pests and diseases that affect Oenothera Howardii?
A: Oenothera Howardii is generally resistant to pests and diseases. However, it may be susceptible to fungal diseases such as powdery mildew and rust.Q: What is the hardiness zone for Oenothera Howardii?
A: Oenothera Howardii is hardy in USDA zones 5-9.
Related Plants
Here are some related plants to Oenothera Howardii:- Oenothera missouriensis- Oenothera speciosa- Oenothera fruticosa- Oenothera macrocarpa
References
– Missouri Botanical Garden. (n.d.). Oenothera Howardii. Retrieved from https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=277310&isprofile=0& – North Carolina State University. (n.d.). Oenothera Howardii. Retrieved from https://plants.ces.ncsu.edu/plants/oenothera-howardii/
