Contents
Description
Antirrhinum Coulterianum, commonly known as Coulter snapdragon, is a flowering plant species belonging to the Plantaginaceae family. It is native to the southwestern United States and Mexico. The plant grows up to 60 cm tall and has hairy stems. The leaves are narrow and elongated, with the lower leaves being larger than the upper ones. The flowers are tubular and have a snapdragon-like shape. The plant blooms in the summer and fall, producing flowers that range in color from pale lavender to deep purple.
Taxonomic Information
| Domain | Eukaryota |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Lamiales |
| Family | Plantaginaceae |
| Genus | Antirrhinum |
Appearance
Antirrhinum Coulterianum has elongated, narrow leaves that are hairy and can grow up to 20 cm long. The flowers are tubular and snapdragon-like in shape, growing up to 2.5 cm long. They range in color from pale lavender to deep purple and grow on a spike up to 30 cm long. The plant grows up to 60 cm tall and has hairy stems.
Care Guide
Antirrhinum Coulterianum prefers well-draining soil and full sun exposure. It is drought-tolerant and does not require frequent watering but can benefit from occasional deep watering during prolonged dry spells. Fertilize the plant once a month during the growing season with a balanced fertilizer. It is hardy in zones 8-11.
Common Pests & Diseases
Antirrhinum Coulterianum is relatively resistant to pests and diseases. However, it can be susceptible to rust and powdery mildew in humid conditions. Aphids and spider mites may also infest the plant. Insecticidal soap or neem oil can be used to control these pests.
Habitat
Antirrhinum Coulterianum is native to the southwestern United States and Mexico, where it grows in dry, rocky areas, and on hillsides. It is commonly found in the Chihuahuan Desert and the Sonoran Desert.
Question and Answer
Q: What is the blooming period of Antirrhinum Coulterianum?
A: Antirrhinum Coulterianum blooms in the summer and fall.
Q: How tall does Antirrhinum Coulterianum grow?
A: Antirrhinum Coulterianum can grow up to 60 cm tall.
Q: Is Antirrhinum Coulterianum drought-tolerant?
A: Yes, Antirrhinum Coulterianum is drought-tolerant.
Q: What is the hardiness zone for Antirrhinum Coulterianum?
A: Antirrhinum Coulterianum is hardy in zones 8-11.
Related Plants
- Antirrhinum Majus (Common Snapdragon)
- Antirrhinum Orontium (Lesser Snapdragon)
- Antirrhinum Kelloggii (Kellogg’s Snapdragon)
References
- “Antirrhinum Coulterianum.” Plant Finder. Missouri Botanical Garden.
- “Antirrhinum Coulterianum.” Dave’s Garden.
- “Antirrhinum Coulterianum.” Gardening Know How.
