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Description
Eriogonum Thomasii, commonly known as Thomas’ buckwheat, is a perennial plant species native to the southwestern United States. This shrub-like plant typically grows up to 3 feet in height and 2 feet in width. It has a woody stem and small, greenish-white flowers that bloom in late spring to early summer.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Tracheophyta |
| Class | Magnoliopsida |
| Order | Caryophyllales |
| Family | Polygonaceae |
| Genus | Eriogonum |
Appearance
Eriogonum Thomasii has small, rounded leaves that are green and slightly fuzzy. Its flowers are clustered together in a dense, rounded inflorescence that is typically 2-3 inches in diameter. The flowers themselves are small and white, with yellowish-green centers, and are held on thin stems that rise above the foliage.
Care Guide
Eriogonum Thomasii is a relatively easy plant to care for, as long as it’s planted in the right location. It prefers dry, well-draining soil, and full sun exposure. Here are some tips for caring for this plant:
- Water: Water thoroughly once a week during the growing season, and less frequently during the winter months.
- Fertilization: Fertilize in early spring with a slow-release, all-purpose fertilizer.
- Soil: Use well-draining soil, and avoid planting in heavy clay soils.
- Sunlight: Eriogonum Thomasii prefers full sun exposure and will not do well in shady locations.
- Hardiness Zones: This plant is hardy in USDA zones 7-10.
Common Pests & Diseases
While Eriogonum Thomasii is generally a hardy plant, it is susceptible to a few pests and diseases. Here are some common issues:
- Aphids: These small insects can suck the sap from the plant, causing stunted growth and yellowing leaves. Use insecticidal soap to control them.
- Rust: Rust is a fungal disease that can cause yellow or orange spots on the leaves. Remove infected leaves and use a fungicide to control the disease.
- Spider Mites: These tiny pests can cause leaves to turn yellow and fall off. Use insecticidal soap to control them.
Habitat
Eriogonum Thomasii is native to the southwestern United States, where it is found in dry, rocky habitats, such as desert washes and rocky slopes. It is also commonly found in chaparral and sagebrush communities.
Question and Answer
Q: Is Eriogonum Thomasii a good plant for xeriscaping?
A: Yes, Eriogonum Thomasii is an excellent plant for xeriscaping, as it is drought-tolerant and requires very little water.
Q: Can Eriogonum Thomasii be grown in containers?
A: Yes, Eriogonum Thomasii can be grown in containers, as long as the container is large enough to accommodate the plant’s root system and the soil is well-draining.
Q: When should I prune Eriogonum Thomasii?
A: Eriogonum Thomasii should be pruned in late winter or early spring, before new growth begins. Remove any dead or damaged branches, and trim back any branches that are overgrown.
Q: Does Eriogonum Thomasii attract pollinators?
A: Yes, Eriogonum Thomasii is a great plant for attracting pollinators, such as bees and butterflies, to your garden.
Related Plants
- Eriogonum fasciculatum
- Eriogonum giganteum
- Eriogonum umbellatum
- Eriogonum wrightii
References
- https://www.fs.fed.us/database/feis/plants/shrub/eritho/all.html
- https://www.desertmuseum.org/programs/botany_plant_adaptations.php
- https://www.wildflower.org/plants/result.php?id_plant=ERTHO
