Contents
Description
Oenothera Speciosa Siskiyou, commonly known as the Siskiyou Evening Primrose, is a perennial herbaceous plant native to North America. It belongs to the Onagraceae family and is a popular ornamental plant due to its showy flowers.
Taxonomic Information
| Domain | Eukarya |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Myrtales |
| Family | Onagraceae |
| Genus | Oenothera |
Appearance
The Siskiyou Evening Primrose grows up to 2 feet tall with a spread of 1-2 feet. It has lance-shaped leaves that are 2-4 inches long and 0.5-1 inch wide. The plant produces pink or white flowers that bloom from late spring to early summer. The flowers are 1-2 inches wide with yellow centers and four petals. The plant is drought tolerant and attracts bees and butterflies.
Care Guide
The Siskiyou Evening Primrose is easy to care for and can thrive in various soil types. Here are some care tips:
Water: Water the plant deeply once a week during the growing season. Reduce watering in winter.
Fertilization: Fertilize the plant in the spring with a balanced fertilizer. Avoid over-fertilization.
Soil: The plant prefers well-draining soil with a pH of 6.0-7.5. Amend the soil with compost or organic matter before planting.
Sunlight: The plant prefers full sun to partial shade.
Hardiness Zones: The plant is hardy in USDA zones 5-9.
Common Pests & Diseases
The Siskiyou Evening Primrose is relatively pest and disease resistant. However, it can be susceptible to powdery mildew and root rot. To prevent these issues, avoid overwatering and provide good air circulation around the plant.
Habitat
The Siskiyou Evening Primrose is native to North America and can be found in various habitats, including prairies, meadows, and rocky slopes. It prefers well-draining soil and full sun.
Question and Answer
Q: Can the Siskiyou Evening Primrose be grown in containers?
A: Yes, the plant can be grown in containers as long as they are large enough and have good drainage.Q: Does the Siskiyou Evening Primrose attract pollinators?
A: Yes, the plant attracts bees and butterflies.Q: How often should I fertilize the Siskiyou Evening Primrose?
A: Fertilize the plant once a year in the spring with a balanced fertilizer.Q: How can I propagate the Siskiyou Evening Primrose?
A: The plant can be propagated by seeds or division in the spring or fall.
Related Plants
Here are some related plants to the Siskiyou Evening Primrose:
- Oenothera x missouriensis
- Oenothera fruticosa
- Oenothera macrocarpa
References
- “Oenothera speciosa Siskiyou.” Missouri Botanical Garden, www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=287013.
- “Oenothera speciosa.” Fine Gardening, 2019, www.finegardening.com/plant/oenothera-speciosa.
- “Oenothera speciosa Siskiyou.” Plant Finder, www.monrovia.com/plant-catalog/plants/4094/siskiyou-evening-primrose/.
