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Description
Phacelia Calthifolia, also known as the California bluebells or trumpet phacelia, is a popular wildflower that is native to California and can also be found in other western regions of the United States. It is a member of the borage family and is known for its stunning blue-purple flowers that bloom in spring and summer. The plant has a unique trumpet-like shape and is a favorite among bees and other pollinators due to its rich nectar and pollen content.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Boraginales |
| Family | Boraginaceae |
| Genus | Phacelia |
Appearance
The Phacelia Calthifolia plant grows up to two feet tall and has slender stems with lanceolate leaves that can reach up to six inches in length. The flowers are trumpet-shaped, measuring up to one inch in diameter, and are a beautiful blue-purple color. The plant blooms in spring and summer, typically from April to August, and produces a lot of nectar, making it a favorite among bees and other pollinators. The plant also has a pleasant fragrance.
Care Guide
Phacelia Calthifolia is a hardy plant that is easy to care for, making it a great choice for both novice and experienced gardeners. Here are some tips on how to care for this beautiful wildflower:
- Water: The plant needs regular watering, especially during the hot summer months. Make sure the soil is moist but not waterlogged.
- Fertilization: The plant does not require fertilization, but you can add a slow-release fertilizer in the spring to help it grow.
- Soil: The plant prefers well-draining, fertile soil. If your soil is poor, you can add compost or other organic matter to improve the soil quality.
- Sunlight: The plant thrives in full sun but can also tolerate partial shade.
- Hardiness Zones: The plant is hardy in zones 7-10.
Common Pests & Diseases
Phacelia Calthifolia is a relatively pest and disease-resistant plant. However, it can still be susceptible to some common pests and diseases, including:
- Aphids: These small insects can suck the sap from the plant and cause stunted growth and yellowing of the leaves. Use insecticidal soap to control them.
- Spider mites: These tiny pests can cause webbing on the plant and lead to yellowing and dropping of the leaves. Use insecticidal soap to control them.
- Crown rot: This fungal disease can cause the plant to wilt and die. Avoid overwatering and improve soil drainage to prevent this disease.
Habitat
Phacelia Calthifolia is native to California and can also be found in other western regions of the United States. It typically grows in open fields, meadows, and along roadsides. The plant prefers well-draining soil and can tolerate a variety of temperatures and weather conditions.
Question and Answer
Q: Can Phacelia Calthifolia be grown indoors?
A: No, this plant is best grown outdoors in a sunny location.
Q: How long does Phacelia Calthifolia bloom?
A: The plant typically blooms from April to August.
Q: Is Phacelia Calthifolia a good plant for attracting bees?
A: Yes, this plant is a favorite among bees and other pollinators due to its rich nectar and pollen content.
Q: How often should Phacelia Calthifolia be watered?
A: The plant needs regular watering, especially during the hot summer months. Make sure the soil is moist but not waterlogged.
Related Plants
- Phacelia Campanularia
- Phacelia Davidii
- Phacelia Distans
- Phacelia Fremontii
References
- “Phacelia Calthifolia.” Lady Bird Johnson Wildflower Center, The University of Texas at Austin.
- “Phacelia Calthifolia.” Calflora.
- “Phacelia Calthifolia.” Plant Finder, Missouri Botanical Garden.
