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Description
Oenothera Glazioviana, also known as large-flowered evening-primrose, is a herbaceous perennial plant that belongs to the Onagraceae family. It is native to South America but has become naturalized in various parts of the world, including Europe and North America. The plant is characterized by its large, yellow flowers that bloom in the evening and emit a sweet fragrance. It grows up to 1.5 meters tall and has a spread of 0.6 meters.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Myrtales |
| Family | Onagraceae |
| Genus | Oenothera |
Appearance
Oenothera Glazioviana has lance-shaped leaves that grow up to 20 cm long and 5 cm wide. The leaves are arranged in a basal rosette and along the stem. The large, yellow flowers of the plant measure about 8 cm in diameter and have four petals. They bloom in the evening and last until the following morning. The flowers give way to long, narrow seed pods that contain the plant’s seeds.
Care Guide
Oenothera Glazioviana is a low-maintenance plant that thrives in well-drained soil and full sun. Here are some care guidelines to follow:- Water: The plant requires moderate watering during the growing season, and it is important to avoid overwatering as it can lead to root rot.- Fertilization: The plant does not require much fertilization, but a balanced fertilizer can be applied once a month during the growing season.- Soil: Oenothera Glazioviana prefers well-drained soil that is rich in organic matter.- Sunlight: The plant requires full sun to thrive, but it can tolerate partial shade.- Hardiness Zones: Oenothera Glazioviana can grow in hardiness zones 4 through 9.
Common Pests & Diseases
Oenothera Glazioviana is generally not susceptible to many pests and diseases. However, here are some common issues to look out for:- Aphids: These small insects can suck the sap from the plant’s leaves and cause them to wilt. They can be controlled by spraying the plant with insecticidal soap.- Rust: This fungal disease can cause rust-colored spots on the plant’s leaves. It can be controlled by removing infected leaves and applying a fungicide.
Habitat
Oenothera Glazioviana is native to South America and can be found in various habitats, including grasslands, meadows, and open woodlands. It has become naturalized in other parts of the world, including Europe and North America.
Question and Answer
Q: Is Oenothera Glazioviana a perennial or an annual plant?
A: Oenothera Glazioviana is a perennial plant.
Q: What is the blooming period of Oenothera Glazioviana?
A: The plant blooms from late spring to early fall.
Q: Can Oenothera Glazioviana grow in containers?
A: Yes, the plant can be grown in containers as long as they are deep enough to accommodate the plant’s long taproot.
Q: Does Oenothera Glazioviana require pruning?
A: The plant does not require pruning, but deadheading the spent flowers can encourage more blooms.
Related Plants
Here are some related plants to Oenothera Glazioviana:- Oenothera biennis (common evening-primrose)- Oenothera fruticosa (narrow-leaved evening-primrose)- Oenothera macrocarpa (Missouri evening-primrose)- Oenothera missouriensis (Missouri evening-primrose)
References
– Missouri Botanical Garden. (n.d.). Oenothera glazioviana. Retrieved from http://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=b758- Royal Horticultural Society. (n.d.). Oenothera glazioviana. Retrieved from https://www.rhs.org.uk/plants/15499/oenothera-glazioviana/details
