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Description
Tetragonotheca Helianthoides, also known as sundial or squarestem, is a perennial plant native to North America. It belongs to the Asteraceae family and is known for its bright yellow flowers that bloom in the summer and fall. The plant can grow up to 3 feet tall and 2 feet wide, and its leaves are lance-shaped and serrated. Its scientific name comes from the Greek words “tetra,” meaning four, “gonia,” meaning angle, and “theke,” meaning box, which refers to its square stem and four-angled fruit.
Taxonomic Information
| Domain | Eukarya |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Asterales |
| Family | Asteraceae |
| Genus | Tetragonotheca |
Appearance
Tetragonotheca Helianthoides is a beautiful plant that can add a splash of color to any garden or landscape. Its bright yellow flowers are about 2 inches wide and have a central disk surrounded by 8-15 ray flowers. The flowers bloom in clusters at the end of the stems and can last up to 2 months. The plant’s leaves are dark green, lance-shaped, and serrated, and they grow up to 5 inches long and 1 inch wide. The plant’s stem is square and can be up to 3 feet tall.
Care Guide
Tetragonotheca Helianthoides is a relatively low-maintenance plant that can thrive in a variety of conditions. Here are some tips on how to care for it:
Water: Water the plant regularly, especially during hot and dry weather. Make sure the soil is moist but not waterlogged.
Fertilization: Fertilize the plant once a month during the growing season with a balanced fertilizer.
Soil: The plant prefers well-draining soil that is rich in organic matter. It can tolerate a wide range of soil types, including sandy or clay soils.
Sunlight: Tetragonotheca Helianthoides prefers full sun but can also tolerate partial shade.
Hardiness Zones: The plant is hardy in USDA zones 8-10.
Common Pests & Diseases
Tetragonotheca Helianthoides is generally a healthy plant that is not susceptible to many pests or diseases. However, it can be affected by spider mites, aphids, and whiteflies. To prevent these pests, keep the plant clean and free of debris, and use insecticidal soap if necessary. The plant can also be affected by powdery mildew or root rot if it is overwatered or planted in poorly draining soil.
Habitat
Tetragonotheca Helianthoides is native to North America and can be found in a variety of habitats, including meadows, prairies, and roadsides. It prefers full sun but can also tolerate partial shade. The plant is drought-tolerant and can be found in areas with low rainfall.
Question and Answer
Q: Is Tetragonotheca Helianthoides a good plant for beginners?
A: Yes, it is a relatively low-maintenance plant that can thrive in a variety of conditions.
Q: How often should I water Tetragonotheca Helianthoides?
A: Water the plant regularly, especially during hot and dry weather. Make sure the soil is moist but not waterlogged.
Q: What is the best time to plant Tetragonotheca Helianthoides?
A: The best time to plant the plant is in the spring or fall when the weather is mild.
Q: Can Tetragonotheca Helianthoides be grown in containers?
A: Yes, the plant can be grown in containers as long as they are large enough to accommodate its root system.
Related Plants
Here are some related plants that you might be interested in:
- Tetragonotheca Texana
- Tetragonotheca Ludoviciana
- Tetragonotheca Californica
References
- https://www.gardeningknowhow.com/ornamental/flowers/sundial/tetragonotheca-helianthoides.htm
- https://www.wildflower.org/plants/result.php?id_plant=TEHE
- https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=c740
