Contents
Description
Thermopsis Lanceolata, also known as lanceleaf thermopsis or mountain thermopsis, is a perennial herbaceous plant that belongs to the pea family (Fabaceae). It is native to the western United States, particularly in the Rocky Mountains and Great Basin regions. The plant typically grows up to 2-3 feet tall and has a spread of up to 1-2 feet. It produces bright yellow flowers that bloom in late spring to early summer.
Taxonomic Information
| Domain: | Eukarya |
|---|---|
| Kingdom: | Plantae |
| Phylum: | Tracheophyta |
| Class: | Magnoliopsida |
| Order: | Fabales |
| Family: | Fabaceae |
| Genus: | Thermopsis |
| Species: | Lanceolata |
Appearance
The lanceleaf thermopsis has lance-shaped leaves that are about 4 inches long and 1 inch wide. The leaves are typically green in color and have a slightly hairy texture. The flowers of the plant are arranged in a spike-like cluster and have a bright yellow color with a red and orange tinge. The flowers are about 1 inch long and have a sweet fragrance. The lanceleaf thermopsis produces seed pods that are about 2 inches long and contain several seeds.
Care Guide
The lanceleaf thermopsis is a hardy plant that is easy to care for. Here are some tips on how to care for this plant:
- Water: The plant requires moderate watering, especially during the growing season. Avoid overwatering as it can lead to root rot.
- Fertilization: The plant does not require frequent fertilization, but you can apply a slow-release fertilizer once a year during the growing season.
- Soil: The plant prefers well-draining soils that are slightly acidic. You can add organic matter to the soil to improve its quality.
- Sunlight: The plant requires full sunlight to thrive. Make sure it gets at least 6 hours of direct sunlight per day.
- Hardiness Zones: The plant is hardy in USDA zones 4-8.
Common Pests & Diseases
The lanceleaf thermopsis is relatively pest-resistant, but it can be affected by some pests and diseases. Here are some common pests and diseases that can affect this plant:
- Aphids: These insects can suck the sap from the plant, causing stunted growth and yellowing of leaves.
- Spider mites: These pests can cause the leaves to become discolored and eventually fall off.
- Fungal diseases: The plant can be affected by fungal diseases such as powdery mildew and rust, which can cause yellowing and wilting of leaves.
Habitat
The lanceleaf thermopsis is native to the western United States and is commonly found in mountain meadows, slopes, and forests. The plant grows well in well-draining soils that are slightly acidic and requires full sunlight to thrive.
Question and Answer
Q: Is the lanceleaf thermopsis poisonous?
A: No, the plant is not poisonous to humans or animals.
Q: Can I grow the lanceleaf thermopsis in a container?
A: Yes, you can grow the plant in a container, but make sure the container is large enough to accommodate the plant’s root system.
Q: How do I propagate the lanceleaf thermopsis?
A: You can propagate the plant by sowing seeds in the spring or by dividing the plant in the fall.
Q: How long do the flowers of the lanceleaf thermopsis last?
A: The flowers of the plant typically last for about 2-3 weeks.
Related Plants
- Thermopsis Montana
- Thermopsis Villosa
- Thermopsis Rhombifolia
References
- Missouri Botanical Garden. (n.d.). Thermopsis lanceolata. Retrieved from https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=279352&isprofile=1&basic=thermopsis
- RHS. (n.d.). Thermopsis lanceolata. Retrieved from https://www.rhs.org.uk/Plants/52699/Thermopsis-lanceolata/Details
- USDA. (n.d.). Thermopsis lanceolata. Retrieved from https://plants.usda.gov/core/profile?symbol=THLA
