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Description
Phacelia Douglasii, commonly known as Douglas’ phacelia, is a flowering plant species belonging to the Phacelia genus of the Boraginaceae family. It is a native plant species of western North America and is found in states such as California, Oregon, and Nevada. The plant produces beautiful purple-blue flowers that bloom in the spring and summer months. It is an annual plant that grows up to 60 cm in height and 30 cm in width.
Taxonomic Information
| Domain | Eukarya |
| Kingdom | Plantae |
| Phylum | Tracheophyta |
| Class | Magnoliopsida |
| Order | Boraginales |
| Family | Boraginaceae |
| Genus | Phacelia |
Appearance
The leaves of Phacelia Douglasii are gray-green and have a hairy texture. The plant produces beautiful purple-blue flowers that are trumpet-shaped, with five petals surrounding a yellow center. The flowers are arranged in clusters at the end of the stems. The plant grows up to 60 cm in height and 30 cm in width. It has a bushy appearance and the stems are also hairy.
Care Guide
Phacelia Douglasii is an easy plant to care for and is suitable for beginners. Here are some care tips:
- Water: Water the plant regularly, but do not overwater. Allow the soil to dry out slightly before watering again.
- Fertilization: Fertilize the plant once a month during the growing season with a balanced fertilizer.
- Soil: The plant prefers well-draining soil with a pH range of 6.0 to 7.5.
- Sunlight: Phacelia Douglasii prefers full sun to partial shade.
- Hardiness Zones: The plant is hardy in USDA zones 5 to 10.
Common Pests & Diseases
Phacelia Douglasii is not susceptible to many pests or diseases. However, it may be affected by spider mites, thrips, and whiteflies. It may also be susceptible to root rot if overwatered. To prevent these issues, inspect the plant regularly and maintain good plant hygiene.
Habitat
Phacelia Douglasii is native to the western regions of North America and is found in states such as California, Oregon, and Nevada. It grows in open fields, meadows, and along roadsides. The plant prefers well-draining soil and can grow in a range of soil types. It is also tolerant of drought conditions.
Question and Answer
Q: Is Phacelia Douglasii a perennial plant?
A: No, Phacelia Douglasii is an annual plant.
Q: What is the ideal soil pH for Phacelia Douglasii?
A: The ideal soil pH for Phacelia Douglasii is between 6.0 to 7.5.
Q: How often should I fertilize Phacelia Douglasii?
A: Fertilize the plant once a month during the growing season with a balanced fertilizer.
Q: Which hardiness zones can Phacelia Douglasii tolerate?
A: Phacelia Douglasii is hardy in USDA zones 5 to 10.
Related Plants
- Phacelia Campanularia
- Phacelia Tanacetifolia
- Phacelia Bolanderi
- Phacelia Crenulata
References
- https://www.wildflower.org/plants/result.php?id_plant=PHDO
- https://www.gardenia.net/plant/phacelia-douglasii
- https://www.fs.fed.us/wildflowers/plant-of-the-week/phacelia_douglasii.shtml
