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Description
Rosa Transmorrisonensis, commonly known as the Morrison rose, is a species of wild rose native to California. It was discovered by botanist and horticulturist Frank Gander in 1915 in the Morrison Canyon near Fremont. The plant is a deciduous shrub that can grow up to 6 feet tall and 4 feet wide. It has fragrant, pink flowers that bloom in the spring and summer, followed by showy, red hips in the fall. The Morrison rose is a popular ornamental plant in gardens and landscapes due to its beauty and hardiness.
Taxonomic Information
| Domain | Eukaryota |
|---|---|
| Kingdom | Plantae |
| Phylum | Tracheophyta |
| Class | Magnoliopsida |
| Order | Rosales |
| Family | Rosaceae |
| Genus | Rosa |
Appearance
The Morrison rose has a sprawling growth habit and can form dense thickets. Its stems are covered in sharp, curved thorns, which can make pruning and handling difficult. The leaves are pinnately compound, with 5-7 oval-shaped leaflets that are dark green and glossy. The flowers are single or in small clusters, with 5 petals that are pink or light rose in color. The hips are round and bright red, about the size of a cherry, and remain on the plant well into the winter.
Care Guide
The Morrison rose is a hardy plant that can grow in a variety of soil types and conditions. It prefers full sun to partial shade and regular watering, but can tolerate drought once established. Fertilize in the spring with a balanced fertilizer to encourage growth and flowering. Prune in the late winter to early spring to remove dead or damaged wood and shape the plant. The Morrison rose is hardy in USDA zones 7-10.
Common Pests & Diseases
The Morrison rose is relatively resistant to pests and diseases, but can still be affected by some common problems. Aphids, spider mites, and thrips can cause damage to the leaves and flowers, while powdery mildew and black spot can cause leaf drop and defoliation. Regular inspection and treatment with insecticidal soap or neem oil can help control pests, while proper pruning and sanitation can prevent the spread of fungal diseases.
Habitat
The Morrison rose is native to California and can be found growing in a variety of habitats, including chaparral, oak woodlands, and coastal sage scrub. It prefers well-drained soils and can tolerate some drought and heat. The plant is an important food source for native birds and mammals, who feed on the hips in the fall and winter.
Question and Answer
Q: Can the Morrison rose be grown in containers?
A: Yes, the Morrison rose can be grown in containers, but it will need regular watering and fertilizing to thrive.
Q: How often should I prune my Morrison rose?
A: Prune your Morrison rose in the late winter to early spring, before new growth appears. Remove any dead or damaged wood and shape the plant as desired.
Q: Can the hips of the Morrison rose be used for cooking?
A: Yes, the hips of the Morrison rose can be used to make jams, jellies, and other culinary treats. They are high in vitamin C and have a tangy, slightly sweet flavor.
Q: Does the Morrison rose attract bees and other pollinators?
A: Yes, the Morrison rose is a valuable source of nectar and pollen for bees, butterflies, and other pollinating insects.
Related Plants
- Rosa californica
- Rosa woodsii
- Rosa rugosa
- Rosa glauca
References
- “Rosa Transmorrisonensis.” Wikipedia, Wikimedia Foundation, 26 Mar. 2021, en.wikipedia.org/wiki/Rosa_transmorrisonensis.
- McGourty, John. “The Morrison Rose: A Native Beauty for Your Garden.” UC Master Gardener Program of Sonoma County, 12 Apr. 2018, ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=26769.
- “Rosa Transmorrisonensis.” Las Pilitas Nursery, n.d., www.laspilitas.com/nature-of-california/plants/122–rosa-transmorrisonensis.
