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Description
Oenothera Clelandii, also known as Cleland’s evening primrose, is a species of flowering plant in the family Onagraceae. It is native to Australia and is commonly found in South Australia, Victoria, and New South Wales. The plant typically grows up to 30 cm in height and has bright yellow flowers that bloom from September to November. The flowers are fragrant and attract bees, butterflies, and other pollinators.
Taxonomic Information
| Domain | Eukarya |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Myrtales |
| Family | Onagraceae |
| Genus | Oenothera |
| Species | Clelandii |
Appearance
Oenothera Clelandii has narrow, lance-shaped leaves that are up to 8 cm long and 1 cm wide. The leaves are green in color and are arranged in a rosette at the base of the plant. The stem of the plant is usually hairy and can be red or green in color. The flowers are 2-4 cm in diameter and have four petals that are bright yellow in color. The flowers open in the evening and wilt by midday the following day.
Care Guide
Oenothera Clelandii is a hardy plant that requires minimal care. Here are some tips on how to care for this plant:
- Water: Water the plant regularly, especially during hot and dry weather.
- Fertilization: Fertilize the plant with a balanced fertilizer once a month during the growing season.
- Soil: The plant prefers well-draining soil that is rich in organic matter.
- Sunlight: The plant prefers full sun but can tolerate partial shade.
- Hardiness Zones: Oenothera Clelandii is hardy in USDA zones 8-10.
Common Pests & Diseases
Oenothera Clelandii is susceptible to a few pests and diseases. Here are some of the most common ones:
- Aphids: These small, soft-bodied insects can suck the sap from the plant and cause stunted growth and wilting.
- Spider mites: These tiny pests can cause yellowing and wilting of the leaves.
- Root rot: Overwatering or poorly draining soil can cause root rot, which can lead to the death of the plant.
Habitat
Oenothera Clelandii is commonly found in open, rocky areas, including grasslands, woodlands, and heathlands. It prefers well-draining soil and can tolerate drought and high temperatures.
Question and Answer
Q: Is Oenothera Clelandii a perennial or an annual?
A: Oenothera Clelandii is a perennial plant.
Q: How often should I water Oenothera Clelandii?
A: Water the plant regularly, especially during hot and dry weather. Allow the soil to dry out slightly between waterings.
Q: Can Oenothera Clelandii tolerate cold temperatures?
A: No, Oenothera Clelandii is not cold-hardy and should be protected from frost and freezing temperatures.
Q: How do I propagate Oenothera Clelandii?
A: Oenothera Clelandii can be propagated by seed or by dividing the plant in the spring.
Related Plants
- Oenothera biennis
- Oenothera fruticosa
- Oenothera macrocarpa
References
- https://www.anbg.gov.au/gnp/interns-2001/oenothera-clelandii.html
- https://www.gardeningknowhow.com/ornamental/flowers/evening-primrose/growing-evening-primrose.htm
- https://www.rhs.org.uk/plants/234238/Oenothera-Clelandii/Details
