Contents
Description
Grielum is a genus of flowering plants in the family Aizoaceae, which is native to southern Africa. It is a small, low-growing plant that is ideal for rock gardens, borders, and containers. These plants are also known as “yellow stars” because of their bright yellow flowers that resemble stars. They bloom in the summer and fall, and their flowers are long-lasting.
Taxonomic Information
| Domain: | Eukaryota |
| Kingdom: | Plantae |
| Phylum: | Angiosperms |
| Class: | Eudicots |
| Order: | Caryophyllales |
| Family: | Aizoaceae |
| Genus: | Grielum |
Appearance
Grielum plants have small, succulent leaves that are green-grey in color. The leaves grow in a rosette pattern, and the plant grows to a maximum height of six inches. The flowers are bright yellow and star-shaped, with five petals. They bloom in the summer and fall, and their flowers can last for several weeks.
Care Guide
Grielum plants are easy to care for and do well in full sun to partial shade. They prefer well-draining soil and should not be overwatered. During the growing season, fertilize every two to four weeks with a balanced fertilizer. Grielum plants are hardy to USDA hardiness zones 9-11.
Common Pests & Diseases
Grielum plants are relatively resistant to pests and diseases. However, they may be susceptible to mealybugs, spider mites, and aphids. To prevent these pests, keep the plants clean and avoid overwatering. If pests are present, treat with an insecticidal soap or neem oil.
Habitat
Grielum plants are native to southern Africa, where they grow in rocky areas and on hillsides. They prefer dry, arid climates and are commonly found in the Western Cape and Northern Cape provinces of South Africa.
Question and Answer
Q: Can Grielum plants tolerate frost?
A: No, Grielum plants are not frost-tolerant and should be protected from freezing temperatures.
Q: How often should I water my Grielum plant?
A: Grielum plants prefer well-draining soil and should be watered when the top inch of soil is dry. Avoid overwatering, as this can cause root rot.
Q: Can I grow Grielum plants indoors?
A: Yes, Grielum plants can be grown indoors in a bright, sunny location. However, they may not flower as well as they would outdoors.
Q: How long do Grielum flowers last?
A: Grielum flowers can last for several weeks during the summer and fall.
Related Plants
- Mesembryanthemum
- Lampranthus
- Dorotheanthus
References
- https://www.gardenia.net/plant/grielum
- https://worldofsucculents.com/grielum
- https://www.succulentsandsunshine.com/grielum-care/
