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Description
Mentzelia Oligosperma, commonly known as the Evening Star, is a wildflower that belongs to the Loasaceae family. This annual plant can grow up to two feet tall and has a beautiful display of bright yellow flowers that bloom from late spring to early fall. The Evening Star is native to the western regions of North America, including Arizona, California, and Nevada.
Taxonomic Information
| Domain | Eukarya |
|---|---|
| Kingdom | Plantae |
| Phylum | Tracheophyta |
| Class | Magnoliopsida |
| Order | Cornales |
| Family | Loasaceae |
| Genus | Mentzelia |
Appearance
The Evening Star has a unique appearance with its bright yellow flowers that bloom during the evening and close during the day. The flowers are about an inch in diameter and have five petals. The plant has green, lance-shaped leaves that are about four inches long. The stems are hairy and can be green or reddish in color. The plant can grow up to two feet tall and can spread up to two feet wide.
Care Guide
The Evening Star is a low-maintenance plant that requires minimal care. Here are a few tips on how to care for the plant:
Water: The Evening Star needs moderate watering. Water the plant when the top inch of soil is dry.
Fertilization: Fertilize the plant once every two weeks during the growing season using a balanced fertilizer.
Soil: The Evening Star prefers well-draining soil with a pH between 6.0 and 7.5.
Sunlight: The plant requires full sun exposure for at least six hours a day.
Hardiness Zones: The Evening Star can thrive in hardiness zones 7 to 10.
Common Pests & Diseases
The Evening Star is generally resistant to pests and diseases. However, here are a few common issues to watch out for:
Aphids: These pests can suck the sap from the plant, causing it to wilt. Use insecticidal soap to get rid of aphids.
Fungal Diseases: The plant can be susceptible to fungal diseases like powdery mildew and leaf spot. Keep the plant well-ventilated and remove any infected leaves immediately.
Habitat
The Evening Star is native to the western regions of North America, including Arizona, California, and Nevada. The plant can be found in rocky slopes, dry washes, and desert areas. It can tolerate drought conditions and can grow in sandy or clay soils.
Question and Answer
Q: Can the Evening Star grow in containers?
A: Yes, the Evening Star can grow in containers. Make sure the container has good drainage and use a well-draining potting mix.
Q: How often should I fertilize the plant?
A: Fertilize the plant once every two weeks during the growing season using a balanced fertilizer.
Q: Can the plant grow in shade?
A: No, the plant requires full sun exposure for at least six hours a day.
Q: How long do the flowers bloom?
A: The flowers bloom from late spring to early fall.
Related Plants
- Mentzelia Decapetala
- Mentzelia Laevicaulis
- Mentzelia Multicaulis
- Mentzelia Nitens
References
- https://www.wildflower.org/plants/result.php?id_plant=meol
- https://www.gardenia.net/plant/mentzelia-oligosperma-evening-star
- https://www.gardeningknowhow.com/ornamental/flowers/evening-star/evening-star-plant-care.htm
