Calceolaria, commonly known as slipper flower, is a genus of flowering plants in the family Calceolariaceae. It is native to South America, specifically the Andean region, and is widely cultivated as an ornamental plant for its distinctive slipper-shaped flowers.
Contents
Taxonomic Information
| Domain | Eukaryota |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Lamiales |
| Family | Calceolariaceae |
| Genus | Calceolaria |
Appearance
Calceolaria plants are typically small, bushy perennials that grow up to 12 inches tall. They have oval or heart-shaped leaves that are often tinged with purple or red. The flowers are the main attraction of the plant, and come in a wide range of colors from yellow and orange to red and purple. The flowers are slipper-shaped, with a pouch-like lower lip and two upper lips that curve inward.
Care Guide
Calceolaria plants require moderate care to thrive. Here are some tips:
- Water: Keep the soil moist, but not waterlogged. Water the plant when the top inch of soil feels dry to the touch.
- Fertilization: Feed the plant with a balanced fertilizer every 2-3 weeks during the growing season.
- Soil: Use well-draining soil that is rich in organic matter.
- Sunlight: Calceolaria plants prefer partial shade or filtered sunlight. Too much direct sun can cause the flowers to fade and the leaves to scorch.
- Hardiness Zones: Calceolaria plants are not frost tolerant and are best grown in USDA zones 9-11.
Common Pests & Diseases
Calceolaria plants are susceptible to several pests and diseases, including:
- Aphids: These small insects feed on the sap of the plant and can cause stunted growth and distorted leaves. Use insecticidal soap or neem oil to control aphids.
- Spider mites: These tiny pests can cause yellowing leaves and a fine webbing on the plant. Use a miticide to control spider mites.
- Powdery mildew: This fungal disease appears as a white, powdery coating on the leaves. Improve air circulation and avoid overhead watering to prevent powdery mildew.
Habitat
Calceolaria plants are native to the Andean region of South America, where they grow in high-altitude forests and grasslands. They prefer cool, moist conditions and are often found growing in rocky crevices and on cliffs.
Question and Answer
Q: How often should I water my Calceolaria plant?
A: Water your Calceolaria plant when the top inch of soil feels dry to the touch. Be sure not to overwater, as this can lead to root rot.
Q: Can Calceolaria plants be grown indoors?
A: Yes, Calceolaria plants can be grown indoors in a bright, cool room. Keep the soil moist and provide good air circulation.
Q: How long do Calceolaria flowers last?
A: Calceolaria flowers typically last for several weeks, but individual flowers may only last a few days.
Q: Can Calceolaria plants be propagated from cuttings?
A: Yes, Calceolaria plants can be propagated from stem cuttings taken in the spring or summer. Dip the cuttings in rooting hormone and plant in well-draining soil.
Related Plants
- Cymbalaria
- Limnanthes
- Primula
- Saxifraga
References
- “Calceolaria.” Missouri Botanical Garden. https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=287501.
- “Calceolaria.” Royal Horticultural Society. https://www.rhs.org.uk/Plants/10133/Calceolaria/Details.
- “Calceolaria.” Plant Care Today. https://plantcaretoday.com/calceolaria-care.html.
