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Description
Erysimum Canescens, commonly known as hoary wallflower, is a perennial flowering plant that belongs to the Brassicaceae family. This plant is native to western North America, and it grows in rocky, dry areas such as cliffs, slopes, and open woods. It has a woody stem that can reach up to 60cm in height and bears narrow, gray-green leaves that are densely hairy. The plant blooms from April to July, producing attractive yellow flowers that have four petals and a sweet fragrance.
Taxonomic Information
| Domain: | Eukaryota |
| Kingdom: | Plantae |
| Phylum: | Spermatophyta |
| Class: | Angiospermae |
| Order: | Brassicales |
| Family: | Brassicaceae |
| Genus: | Erysimum |
Appearance
Erysimum Canescens is an eye-catching plant that adds color and texture to any garden. The leaves of this plant are narrow, gray-green, and densely hairy, giving them a soft, velvety texture. The flowers are bright yellow, with four petals and a sweet fragrance. The plant has a woody stem that can grow up to 60cm in height and can spread up to 50cm wide. It is a hardy plant that is well adapted to rocky, dry areas and can survive in harsh conditions.
Care Guide
Erysimum Canescens is a hardy plant that is easy to grow and maintain. Here are some care tips:
- Water: This plant is drought-tolerant and does not require frequent watering. Water the plant deeply once a week during the growing season, and reduce watering in the winter.
- Fertilization: Erysimum Canescens does not require heavy fertilization. Apply a balanced fertilizer once a year in the spring.
- Soil: The plant prefers well-draining soil that is rich in organic matter. It can grow in rocky, sandy soils, as well as loamy soils.
- Sunlight: Erysimum Canescens requires full sun to grow and bloom. Plant it in a location that receives at least six hours of direct sunlight per day.
- Hardiness Zones: This plant is hardy in USDA zones 5-10.
Common Pests & Diseases
Erysimum Canescens is generally resistant to pests and diseases. However, it can be affected by the following:
- Aphids: These small insects can suck the sap from the leaves and stems of the plant, causing yellowing and distortion. Use insecticidal soap to control aphids.
- Slugs and Snails: These pests can damage the leaves and flowers of the plant. Use slug bait or copper tape to control them.
- Fungal Diseases: Erysimum Canescens can be affected by fungal diseases such as powdery mildew and rust. Use a fungicide to control these diseases.
Habitat
Erysimum Canescens is native to western North America, and it grows in rocky, dry areas such as cliffs, slopes, and open woods. The plant is well adapted to harsh conditions and can survive in poor, nutrient-deficient soils. It is an important food source for pollinators such as bees and butterflies.
Question and Answer
Q: Is Erysimum Canescens an annual or perennial plant?
A: Erysimum Canescens is a perennial plant.
Q: Can Erysimum Canescens grow in containers?
A: Yes, Erysimum Canescens can be grown in containers as long as the soil is well-draining and the plant receives adequate sunlight.
Q: How often should I fertilize Erysimum Canescens?
A: Erysimum Canescens does not require heavy fertilization. Apply a balanced fertilizer once a year in the spring.
Q: Can Erysimum Canescens be propagated from cuttings?
A: Yes, Erysimum Canescens can be propagated from cuttings taken in the summer.
Related Plants
- Erysimum asperum
- Erysimum capitatum
- Erysimum cheiranthoides
- Erysimum franciscanum
- Erysimum insulare
References
- https://www.fs.fed.us/wildflowers/plant-of-the-week/erysimum_canescens.shtml
- https://www.gardeningknowhow.com/ornamental/flowers/wallflower/hoary-wallflower-care.htm
- https://www.nps.gov/plants/pubs/interop/ferocactus_cylindraceus.html
