Astragalus Trimestris

Description

Astragalus Trimestris, also known as Three-leaf Milk Vetch, is a perennial herbaceous plant that is native to North America. It belongs to the Fabaceae family and is commonly found in sandy, desert-like areas. The plant has a taproot system that helps it withstand harsh environmental conditions, making it a hardy and resilient species.

Taxonomic Information

Appearance

The Astragalus Trimestris plant can grow up to 30 cm tall and has a spread of 45 cm. It has small green leaves, with each leaflet measuring up to 2 cm long. The plant produces white, pink or purple flowers that bloom from April to June. The fruit is a small, elongated pod that contains several seeds. The plant’s taproot system is thick and can grow up to 1 meter deep.

Care Guide

Water: The plant requires moderate watering, with an ideal soil moisture level of 50-60%. Overwatering can lead to root rot, so it is important to allow the soil to dry out slightly before watering again.

Fertilization: The plant does not require much fertilization, but a balanced fertilizer can be applied during the growing season to promote growth and flowering.

Soil: The plant prefers well-drained, sandy soils with a pH range of 5.5-7.5. It can tolerate poor soil conditions, but it is important to avoid planting in heavy, clay soils.

Sunlight: The plant requires full sunlight to thrive and should be planted in an area that receives at least 6 hours of direct sunlight per day.

Hardiness Zones: The plant is hardy in USDA zones 3-9 and can tolerate temperatures as low as -40°F (-40°C).

Common Pests & Diseases

Astragalus Trimestris is generally resistant to pests and diseases. However, it can be susceptible to root rot if overwatered. Insects such as aphids and spider mites can also infest the plant, but they can be controlled with insecticidal soap or neem oil.

Habitat

Astragalus Trimestris is commonly found in sandy, desert-like areas, including prairies, hillsides and meadows. It is native to North America and can be found in the United States, including California, Colorado, and Texas, as well as in Canada.

Question and Answer

Q: Is Astragalus Trimestris poisonous?

A: No, the plant is not poisonous and is safe for human consumption.

Q: How often should I water Astragalus Trimestris?

A: The plant requires moderate watering, with an ideal soil moisture level of 50-60%. Allow the soil to dry out slightly before watering again.

Q: Can Astragalus Trimestris grow in heavy, clay soils?

A: It is important to avoid planting Astragalus Trimestris in heavy, clay soils as it prefers well-drained, sandy soils.

Q: Does Astragalus Trimestris attract bees and butterflies?

A: Yes, the plant produces flowers that attract bees and butterflies.

Related Plants

• Astragalus Bisulcatus
• Astragalus Membranaceus
• Astragalus Purshii

References

• “Astragalus Trimestris.” Lady Bird Johnson Wildflower Center. Accessed September 22, 2021. https://www.wildflower.org/plants/result.php?id_plant=ASTR3.
• “Astragalus Trimestris.” Missouri Botanical Garden. Accessed September 22, 2021. https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=b839.
• “Astragalus Trimestris.” USDA Plants Database. Accessed September 22, 2021. https://plants.usda.gov/core/profile?symbol=ASTR3.