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(Crocanthemum aldersonii)
Alderson Rushrose (Crocanthemum aldersonii)
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Sula Vanderplank
CC BY 4.0
Image By:
Sula Vanderplank
Recorded By:
Copyright:
CC BY 4.0
Copyright Notice:
Photo by: Sula Vanderplank | License Type: CC BY 4.0 | License URL: http://creativecommons.org/licenses/by/4.0/ | Rights Holder: Sula Vanderplank | Publisher: iNaturalist | Date Created: 2021-05-26T15:33:18Z |
Estimated Native Range
Summary
Crocanthemum aldersonii, commonly known as Alderson Rushrose, is an evergreen shrub native to the chaparral and coastal sage scrub regions of California and Northwestern Mexico. It typically grows to a height of 2-5 feet (0.6-1.5 meters) and a width of 2-4 feet (0.6-1.2 meters). Alderson Rushrose has a compact, rounded form with small, needle-like leaves that contribute to its drought tolerance. It produces vibrant yellow flowers from late spring to early summer, which are particularly showy and attract a variety of pollinators.
Alderson Rushrose is valued for its drought resistance and ability to thrive in poor, rocky soils, making it an excellent choice for xeriscaping and naturalistic plantings in arid environments. It is also used for slope stabilization and habitat restoration projects. In cultivation, it requires minimal maintenance, tolerating full sun and low water conditions once established. While it is not commonly afflicted by diseases, overwatering can lead to root rot. It is not known to be invasive outside its native range, but gardeners should always monitor non-native plants for unexpected spread.CC BY-SA 4.0
Alderson Rushrose is valued for its drought resistance and ability to thrive in poor, rocky soils, making it an excellent choice for xeriscaping and naturalistic plantings in arid environments. It is also used for slope stabilization and habitat restoration projects. In cultivation, it requires minimal maintenance, tolerating full sun and low water conditions once established. While it is not commonly afflicted by diseases, overwatering can lead to root rot. It is not known to be invasive outside its native range, but gardeners should always monitor non-native plants for unexpected spread.CC BY-SA 4.0
Plant Description
- Plant Type: Shrub
- Height: 2-4.5 feet
- Width: 2-4 feet
- Growth Rate: Moderate
- Flower Color: Yellow
- Flowering Season: Spring, Summer
- Leaf Retention: Evergreen
Growth Requirements
- Sun: Full Sun
- Water: Low
- Drainage: Fast
Common Uses
Bee Garden, Bird Garden, Low Maintenance
Natural Habitat
Chaparral and coastal sage scrub regions of California and Northwestern Mexico
Other Names
Common Names: Alderson’s Rush-Rose
Scientific Names: , Crocanthemum aldersonii, Helianthemum scoparium var. aldersonii, Helianthemum aldersonii, Halimium aldersonii,
GBIF Accepted Name: Crocanthemum aldersonii (Greene) Janch.