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Description
Penstemon Laevigatus, also known as the Smooth Penstemon or Wasatch Penstemon, is a species of flowering plant that belongs to the family Plantaginaceae. It is native to the Western United States and can be found in rocky areas, forests, and shrublands. The plant can grow up to 60 cm in height and has narrow leaves that are green or gray-green in color. The flowers are tubular and range in color from pink to lavender. The plant blooms from May to August.
Taxonomic Information
| Domain | Eukarya |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Lamiales |
| Family | Plantaginaceae |
| Genus | Penstemon |
Appearance
Penstemon Laevigatus has narrow leaves that are usually two to four inches long and one-fourth to one-half inch wide. The leaves are smooth and green or gray-green in color. The flowers are tubular and can be up to one inch long. They range in color from pink to lavender and have a white throat. The plant can grow up to 60 cm in height and 30 cm in width. It blooms from May to August.
Care Guide
Penstemon Laevigatus is an easy-to-care-for plant that requires low maintenance. Here’s what you need to know about caring for this plant:Water: Water the plant regularly, especially during the growing season. Make sure the soil is well-drained.Fertilization: Fertilize the plant in the spring with a balanced fertilizer.Soil: The plant prefers well-drained soil that is rich in organic matter.Sunlight: The plant requires full sun to partial shade.Hardiness Zones: Penstemon Laevigatus is hardy in zones 4 to 8.
Common Pests & Diseases
Penstemon Laevigatus is generally a healthy plant that is not susceptible to many pests and diseases. However, it can be affected by powdery mildew, leaf spot, and root rot. To prevent these diseases, make sure the plant is not overcrowded, and the soil is well-drained.
Habitat
Penstemon Laevigatus is native to the Western United States and can be found in rocky areas, forests, and shrublands. It prefers well-drained soil and full sun to partial shade.
Question and Answer
Q: Is Penstemon Laevigatus a perennial plant?
A: Yes, it is a perennial plant.Q: What is the blooming period of Penstemon Laevigatus?
A: The plant blooms from May to August.Q: How do I prevent powdery mildew on Penstemon Laevigatus?
A: To prevent powdery mildew, make sure the plant is not overcrowded, and the soil is well-drained.Q: What is the hardiness zone of Penstemon Laevigatus?
A: The plant is hardy in zones 4 to 8.
Related Plants
Other Penstemon species include:
- Penstemon Grandiflorus
- Penstemon Digitalis
- Penstemon Strictus
- Penstemon Barbatus
References
- “Penstemon laevigatus,” Missouri Botanical Garden, accessed September 1, 2021, https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=c705.
- “Penstemon laevigatus,” Lady Bird Johnson Wildflower Center, accessed September 1, 2021, https://www.wildflower.org/plants/result.php?id_plant=PELA2.
- “Penstemon laevigatus,” Plant Database, accessed September 1, 2021, https://www.wildflower.org/plants/result.php?id_plant=PELA2.
