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Description
Tetradymia Spinosa, also known as Spiny Horsebrush, is a shrub native to the western regions of North America. The plant is named after its spiny branches and leaves, which make it difficult for animals to graze on. It typically grows up to 4 feet tall and 4 feet wide, and its branches are covered in white to grayish bark.
Taxonomic Information
| Domain | Eukarya |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Asterales |
| Family | Asteraceae |
| Genus | Tetradymia |
Appearance
Tetradymia Spinosa has spiny leaves that are about 1 inch long and 1/4 inch wide. The leaves are gray-green in color and covered in fine hairs. The plant produces yellow flowers that are about 1 inch in diameter, and they bloom from July to September. The fruit is a small, dry achene that is about 1/8 inch long.
Care Guide
Water
Tetradymia Spinosa is drought-tolerant and does not require frequent watering. It is important to avoid overwatering the plant, as it can lead to root rot.
Fertilization
The plant does not require fertilization, but you can apply a general-purpose fertilizer once a year in the spring to encourage growth.
Soil
Tetradymia Spinosa prefers well-draining soil that is sandy or rocky. It can tolerate poor soil conditions and does not require rich soil.
Sunlight
The plant prefers full sun exposure and can tolerate partial shade.
Hardiness Zones
Tetradymia Spinosa can grow in hardiness zones 4 to 9.
Common Pests & Diseases
Tetradymia Spinosa is generally resistant to pests and diseases. However, it can be susceptible to spider mites and aphids. To prevent infestations, regularly inspect the plant and treat with insecticidal soap or neem oil if necessary.
Habitat
Tetradymia Spinosa is commonly found in arid regions, including deserts and sagebrush habitats. It can also grow in disturbed areas such as roadsides, fields, and pastures. The plant is native to the western regions of North America, including California, Arizona, and Nevada.
Question and Answer
Q: Is Tetradymia Spinosa poisonous?
A: No, Tetradymia Spinosa is not poisonous.
Q: How often should I prune Tetradymia Spinosa?
A: Prune the plant in the late winter or early spring to remove dead or damaged branches. You can also shape the plant as desired.
Q: Can Tetradymia Spinosa grow in containers?
A: Yes, Tetradymia Spinosa can grow in containers as long as the soil is well-draining and the container is placed in full sun.
Q: How can I propagate Tetradymia Spinosa?
A: You can propagate the plant by taking stem cuttings in the summer and rooting them in well-draining soil.
Related Plants
- Tetradymia Axillaris
- Tetradymia Canescens
- Tetradymia Glabrata
- Tetradymia Stenolepis
References
- “Tetradymia spinosa.” USDA Plants Database. Accessed September 10, 2021. https://plants.usda.gov/home/plantProfile?symbol=TESP.
- “Spiny Horsebrush.” Las Pilitas Nursery. Accessed September 10, 2021. https://www.laspilitas.com/nature-of-california/plants/363–tetradymia-spinosa.
- “Tetradymia Spinosa.” DesertUSA. Accessed September 10, 2021. https://www.desertusa.com/flora/tetradymia-spinosa.html.
