Contents
Description
Spigelia is a genus of flowering plants that includes approximately 25 species. These plants are native to the Americas, specifically the southeastern United States, Mexico, and Central America. The most common species is Spigelia marilandica, which is also known as Indian Pink or Woodland Pinkroot.
Taxonomic Information
| Domain | Eukarya |
|---|---|
| Kingdom | Plantae |
| Phylum | Angiosperms |
| Class | Magnoliopsida |
| Order | Gentianales |
| Family | Loganiaceae |
| Genus | Spigelia |
Appearance
Spigelia plants are known for their showy, tubular flowers that bloom in shades of red or pink. The flowers are typically arranged in clusters at the tips of the stems, and they have a distinctive trumpet-like shape. Spigelia plants can grow up to 2 feet tall and 1 foot wide, with lance-shaped leaves that are dark green and glossy.
Care Guide
Spigelia plants prefer moist, well-draining soil that is rich in organic matter. They require moderate watering, and the soil should be kept consistently moist but not waterlogged. Fertilize Spigelia plants in the spring with a balanced fertilizer, and avoid over-fertilizing as this can lead to poor growth and reduced flowering. These plants prefer partial to full shade and grow best in hardiness zones 5-9.
Common Pests & Diseases
Spigelia plants are generally resistant to pests and diseases. However, they may be susceptible to root rot if overwatered or grown in poorly draining soil. Leaf spot and powdery mildew may also occur in humid conditions.
Habitat
Spigelia plants are native to the southeastern United States, Mexico, and Central America. They are commonly found growing in wooded areas, along stream banks, and in other moist, shaded habitats.
Question and Answer
Q: Can Spigelia plants grow in full sun?
A: While Spigelia plants prefer partial to full shade, they can tolerate some direct sunlight as long as they are not exposed to it for extended periods of time.
Q: How often should I water my Spigelia plant?
A: Spigelia plants prefer moist soil, but they should not be overwatered. Water them when the top inch of soil feels dry to the touch.
Q: When is the best time to fertilize Spigelia plants?
A: Fertilize Spigelia plants in the spring, just before new growth begins.
Q: How do I propagate Spigelia plants?
A: Spigelia plants can be propagated by taking stem cuttings in the summer or by dividing established clumps in the spring.
Related Plants
- Antirrhinum
- Aquilegia
- Asarum
- Campanula
- Delphinium
- Dianthus
- Digitalis
- Echinacea
- Gaura
- Liatris
References
- “Spigelia marilandica.” Missouri Botanical Garden. https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=280715&isprofile=1&basic=spigelia
- “Indian Pink.” North Carolina State University. https://plants.ces.ncsu.edu/plants/spigelia-marilandica/
- “Spigelia marilandica.” University of Florida IFAS Extension. https://gardeningsolutions.ifas.ufl.edu/plants/ornamentals/spigelia.html
