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Description
Oenothera Linifolia, commonly known as the narrowleaf evening-primrose, is a herbaceous perennial plant that belongs to the family Onagraceae. It is native to North America, and it grows in dry and rocky habitats such as prairies, meadows, and open woods. The plant produces bright yellow flowers that bloom during the summer months and attract bees and butterflies.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Myrtales |
| Family | Onagraceae |
| Genus | Oenothera |
Appearance
Oenothera Linifolia grows up to 2-3 feet tall and 1-2 feet wide. It has narrow lance-shaped leaves that are up to 4 inches long and 0.5 inches wide. The leaves are greenish-gray in color and arranged alternately along the stem. The plant produces bright yellow flowers that are up to 2 inches in diameter and have four petals. The flowers open in the late afternoon and remain open until the next morning.
Care Guide
Oenothera Linifolia is an easy-to-grow plant that requires minimal care. Here are some tips:
- Water: Water the plant regularly, especially during dry periods. Avoid overwatering, as this can cause root rot.
- Fertilization: Fertilize the plant once a month during the growing season with a balanced fertilizer.
- Soil: The plant prefers well-draining, sandy soil. Amend heavy clay soil with sand or organic matter to improve drainage.
- Sunlight: Oenothera Linifolia prefers full sun but can tolerate partial shade.
- Hardiness Zones: The plant is hardy in USDA zones 4-8.
Common Pests & Diseases
Oenothera Linifolia is generally pest and disease resistant. However, it can be susceptible to root rot if overwatered. Here are some common pests and diseases:
- Root Rot: This is caused by overwatering or poorly draining soil. Symptoms include yellowing leaves, wilting, and stunted growth. To prevent root rot, ensure that the soil is well-draining and avoid overwatering.
- Spider Mites: These are tiny pests that suck sap from the plant. Symptoms include yellow or brown leaves and fine webbing on the plant. To control spider mites, spray the plant with insecticidal soap or neem oil.
Habitat
Oenothera Linifolia is native to North America and grows in dry and rocky habitats such as prairies, meadows, and open woods. It is adapted to hot and dry conditions and can tolerate drought.
Question and Answer
Q: Can Oenothera Linifolia grow in shade?
A: Oenothera Linifolia prefers full sun but can tolerate partial shade.
Q: Is Oenothera Linifolia a perennial or an annual?
A: Oenothera Linifolia is a herbaceous perennial.
Q: Can Oenothera Linifolia grow in containers?
A: Yes, Oenothera Linifolia can be grown in containers as long as the soil is well-draining and the container is large enough to accommodate the plant’s root system.
Q: How often should I fertilize Oenothera Linifolia?
A: Fertilize the plant once a month during the growing season with a balanced fertilizer.
Related Plants
- Oenothera biennis
- Oenothera macrocarpa
- Oenothera kunthiana
- Oenothera speciosa
References
- Missouri Botanical Garden. (n.d.). Oenothera linifolia. Retrieved from http://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=h620
- North Carolina State University. (n.d.). Oenothera linifolia. Retrieved from https://plants.ces.ncsu.edu/plants/oenothera-linifolia/
- USDA Plants Database. (n.d.). Oenothera linifolia. Retrieved from https://plants.usda.gov/core/profile?symbol=oeli2
