Contents
Description
Phacelia Corymbosa, also known as Blue-flowered Phacelia or Bluebells, is a species of flowering plant native to California and several other western American states. It belongs to the Boraginaceae family and is highly valued for its striking blue-purple flowers and lush foliage.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Tracheophyta |
| Class | Magnoliopsida |
| Order | Boraginales |
| Family | Boraginaceae |
| Genus | Phacelia |
Appearance
The Phacelia Corymbosa plant grows up to 2 feet tall and 1.5 feet wide, with multiple branches and stems. It has a dense covering of green leaves that are up to 4 inches long and 2 inches wide, with wavy edges and a slightly hairy texture. The flowers grow in clusters at the top of the stems and have a bell-shaped structure, with five petals that are deep blue-purple in color and a yellow center. The plant blooms in late spring and early summer.
Care Guide
Phacelia Corymbosa is a low-maintenance plant that is easy to care for. Here are some tips:
- Water: The plant prefers moist, well-drained soil. Water it regularly but avoid overwatering, as this can lead to root rot.
- Fertilization: The plant does not require much fertilizer. You can use a balanced, all-purpose fertilizer once a month during the growing season.
- Soil: The plant prefers a slightly acidic soil with a pH between 5.5 and 6.5. It can grow in various soil types, including sandy, loamy, and clay soils.
- Sunlight: The plant prefers full sun to partial shade. It can tolerate some shade, but too much shade can reduce the number of flowers.
- Hardiness Zones: The plant is hardy in USDA zones 6 to 10.
Common Pests & Diseases
Phacelia Corymbosa is generally resistant to pests and diseases. However, it can be affected by spider mites, aphids, and powdery mildew. To prevent these problems, keep the plant well-watered and well-ventilated, and avoid overcrowding.
Habitat
Phacelia Corymbosa is native to California, Arizona, Nevada, and Utah, where it grows in various habitats, including dry slopes, grasslands, and chaparral. It is also commonly grown as an ornamental plant in gardens and landscapes.
Question and Answer
Q: Can Phacelia Corymbosa grow in containers?
A: Yes, the plant can grow in containers as long as the container is large enough to accommodate its root system and the soil is well-drained.
Q: How often should I water Phacelia Corymbosa?
A: Water the plant regularly, but avoid overwatering. Allow the soil to dry out slightly between waterings.
Q: How tall does Phacelia Corymbosa grow?
A: The plant can grow up to 2 feet tall.
Q: How can I propagate Phacelia Corymbosa?
A: The plant can be propagated by seeds or cuttings. Plant the seeds in a well-prepared soil in the spring, or take cuttings in the summer and root them in a soilless mix.
Related Plants
- Phacelia Bolanderi
- Phacelia Campanularia
- Phacelia Distans
- Phacelia Grandiflora
- Phacelia Tanacetifolia
References
- “Phacelia Corymbosa.” Missouri Botanical Garden. https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=279386.
- “Phacelia Corymbosa.” Plant Care Today. https://plantcaretoday.com/phacelia-corymbosa.html.
- “Phacelia Corymbosa.” San Marcos Growers. https://www.smgrowers.com/products/plants/plantdisplay.asp?plant_id=3257.
