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Description
Lupinus Formosus, also known as the western lupine, is a perennial plant that is native to the western parts of North America. It belongs to the family Fabaceae, which is also known as the legume family. The plant is known for its beautiful blue-purple flowers that bloom from late spring to early summer.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Tracheophyta |
| Class | Magnoliopsida |
| Order | Fabales |
| Family | Fabaceae |
| Genus | Lupinus |
Appearance
Lupinus Formosus grows up to 3 feet tall and 2 feet wide. It has green leaves that are shaped like a hand with five to 10 leaflets. The flowers grow in a cone-shaped cluster that is 4 to 10 inches long. Each flower is about ½ inch long and has a distinctive blue-purple color with a white center. The plant blooms from May to July.
Care Guide
Water
Lupinus Formosus requires regular watering during its growing season. Water the plant deeply once a week, or more frequently if the soil is dry. Make sure that the soil drains well, as the plant does not tolerate standing water.
Fertilization
Fertilize the plant in the spring with a balanced fertilizer. Use a slow-release fertilizer, as this will provide a steady supply of nutrients throughout the growing season.
Soil
Lupinus Formosus prefers well-draining soil that is slightly acidic. The plant does not tolerate heavy clay soil or soil that is constantly wet.
Sunlight
The plant prefers full sun to partial shade. It tolerates some shade, but too much shade can result in fewer flowers.
Hardiness Zones
Lupinus Formosus thrives in USDA hardiness zones 4 to 8.
Common Pests & Diseases
Lupinus Formosus is susceptible to aphids, which can be controlled with insecticidal soap or neem oil. The plant may also be affected by fungal diseases such as powdery mildew or rust. To prevent these diseases, make sure that the plant has good air circulation and avoid overhead watering.
Habitat
Lupinus Formosus is native to the western parts of North America, including California, Oregon, Washington, and British Columbia. The plant grows in a variety of habitats, including meadows, prairies, and open woodlands.
Question and Answer
Q: Is Lupinus Formosus an annual or perennial plant?
A: Lupinus Formosus is a perennial plant.
Q: What is the best time to plant Lupinus Formosus?
A: The best time to plant Lupinus Formosus is in the fall or early spring.
Q: How often should I fertilize Lupinus Formosus?
A: Fertilize the plant once a year in the spring with a slow-release fertilizer.
Q: How do I propagate Lupinus Formosus?
A: Lupinus Formosus can be propagated by seed or division. Propagate by seed in the fall or early spring, or divide the plant in the spring.
Related Plants
- Lupinus Arboreus
- Lupinus Polyphyllus
- Lupinus Perennis
- Lupinus Texensis
References
- https://www.fs.fed.us/wildflowers/plant-of-the-week/lupinus_formosus.shtml
- https://www.gardeningknowhow.com/ornamental/flowers/lupine/growing-lupines.htm
- https://www.hgtv.com/outdoors/flowers-and-plants/perennials/lupine
