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Description
Lilium Washingtonianum, commonly known as the Washington Lily, is a perennial herbaceous plant that belongs to the family Liliaceae. This plant is native to the western part of North America and has been used for medicinal purposes by Native Americans.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Tracheophyta |
| Class | Liliopsida |
| Order | Liliales |
| Family | Liliaceae |
| Genus | Lilium |
Appearance
Lilium Washingtonianum can grow up to 3 feet in height and has lance-shaped leaves that are arranged in whorls. The flowers are trumpet-shaped and have a diameter of 4-6 inches. They are usually white in color, but can also be pink or yellow. The plant blooms in late spring or early summer and has a sweet fragrance.
Care Guide
Water: Lilium Washingtonianum requires regular watering, especially during the growing season. It is important to keep the soil moist, but not waterlogged.
Fertilization: The plant should be fertilized in the spring with a balanced fertilizer. Repeat the process every six weeks until the end of the growing season.
Soil: Lilium Washingtonianum prefers well-draining soil that is rich in organic matter.
Sunlight: The plant requires full sun to grow properly. It should be planted in a location that receives at least 6 hours of sunlight per day.
Hardiness Zones: Lilium Washingtonianum can be grown in USDA hardiness zones 5-9.
Common Pests & Diseases
Lilium Washingtonianum is susceptible to aphids, thrips, and spider mites. These pests can be controlled with insecticides or by introducing natural predators such as ladybugs. The plant is also prone to fungal diseases such as botrytis and powdery mildew. These diseases can be prevented by ensuring proper air circulation and avoiding overhead watering.
Habitat
Lilium Washingtonianum is native to the western part of North America, where it grows in meadows and open woods. The plant prefers well-draining soil and can be found at elevations of up to 10,000 feet.
Question and Answer
Q: Can Lilium Washingtonianum be grown in containers?
A: Yes, Lilium Washingtonianum can be grown in containers as long as the container is at least 12 inches deep and has good drainage.
Q: How often should Lilium Washingtonianum be fertilized?
A: Lilium Washingtonianum should be fertilized every six weeks during the growing season.
Q: How do I control aphids on my Lilium Washingtonianum?
A: Aphids can be controlled with insecticides or by introducing natural predators such as ladybugs.
Q: What is the best time to plant Lilium Washingtonianum?
A: Lilium Washingtonianum should be planted in the fall, before the first frost.
Related Plants
- Lilium pardalinum
- Lilium columbianum
- Lilium kelloggii
References
- https://www.fs.fed.us/wildflowers/plant-of-the-week/lilium_washingtonianum.shtml
- https://www.gardenia.net/plant/lilium-washingtonianum
- https://www.gardeningknowhow.com/ornamental/bulbs/lily/growing-washington-lilies.htm
