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Description
Castilleja Flava, commonly known as Yellow Paintbrush or Prairie Paintbrush, is a herbaceous perennial plant that is native to North America. It is a member of the Orobanchaceae family and is known for its showy yellow flowers that bloom in late spring to early summer.
Taxonomic Information
| Domain | Eukarya |
|---|---|
| Kingdom | Plantae |
| Phylum | Tracheophyta |
| Class | Magnoliopsida |
| Order | Lamiales |
| Family | Orobanchaceae |
| Genus | Castilleja |
Appearance
Castilleja Flava has a height of about 1 to 2 feet and a spread of 1 to 2 feet. Its leaves are lance-shaped and can grow up to 4 inches long. The flowers are tubular, about 1 inch long, and are arranged in a dense spike. They have a bright yellow color and are surrounded by a bract with a red or orange color.
Care Guide
Water
Castilleja Flava prefers moist soil, but it is important not to overwater it. Water the plant deeply once a week, especially during the growing season.
Fertilization
Fertilize Castilleja Flava once a month during the growing season with a balanced fertilizer.
Soil
Castilleja Flava prefers well-draining soil that is rich in organic matter. It can tolerate a wide range of soil types, including sandy and clay soils.
Sunlight
Castilleja Flava prefers full sun to partial shade. It can tolerate some shade but will not flower as well.
Hardiness Zones
Castilleja Flava is hardy in USDA zones 3 to 9.
Common Pests & Diseases
Castilleja Flava is relatively pest-free, but it can be susceptible to powdery mildew and rust. To prevent these diseases, make sure the plant has good air circulation and avoid overhead watering.
Habitat
Castilleja Flava is native to North America and can be found in prairies, meadows, and open woodlands. It prefers well-draining soil and full sun to partial shade.
Question and Answer
Q: Is Castilleja Flava a good plant for attracting pollinators?
A: Yes, Castilleja Flava is a great plant for attracting pollinators, especially bees and butterflies.
Q: Can Castilleja Flava tolerate drought?
A: No, Castilleja Flava prefers moist soil and cannot tolerate drought.
Q: How often should I fertilize Castilleja Flava?
A: Fertilize Castilleja Flava once a month during the growing season with a balanced fertilizer.
Q: Can Castilleja Flava grow in containers?
A: Yes, Castilleja Flava can grow in containers as long as the soil is well-draining and the container is large enough to accommodate the plant’s root system.
Related Plants
- Castilleja Miniata
- Castilleja Chromosa
- Castilleja Occidentalis
- Castilleja Rhexifolia
References
- “Castilleja Flava.” Missouri Botanical Garden, www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=f980.
- “Yellow Paintbrush.” Lady Bird Johnson Wildflower Center, www.wildflower.org/plants/result.php?id_plant=CAFL6.
