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Description
Cornus Rugosa, commonly known as round-leaved dogwood or wrinkled dogwood, is a deciduous shrub species native to North America. It grows up to 10 feet tall and wide, forming a rounded shape with spreading branches. The bark is reddish-brown and exfoliating, revealing a smooth, grayish inner bark. The leaves are opposite, oval-shaped, and have a wrinkled texture. In the fall, they turn a beautiful reddish-purple color. The flowers are small and white, blooming in late spring to early summer. The fruit is a cluster of small, bright red berries that ripen in late summer to early fall and persist into winter.
Taxonomic Information
| Domain | Eukarya |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Cornales |
| Family | Cornaceae |
| Genus | Cornus |
Appearance
Cornus Rugosa has a unique appearance, with its wrinkled leaves and exfoliating bark. The plant forms a dense thicket of branches, giving it a bushy appearance. It can be grown as a single specimen or in groups to create a naturalized effect. The leaves are green in summer, turning a beautiful reddish-purple in the fall. The small flowers are not particularly showy, but the bright red fruit adds a pop of color to the winter landscape.
Care Guide
Cornus Rugosa is a relatively low-maintenance plant, but it does require some care to thrive. Here are some tips for growing and caring for this species:
- Water: Water regularly during the first growing season to establish a deep, extensive root system. Afterward, water deeply and less frequently, depending on rainfall and soil moisture.
- Fertilization: Apply a balanced, slow-release fertilizer in early spring to promote healthy growth and flowering.
- Soil: Plant in well-drained soil, as Cornus Rugosa does not tolerate wet feet. It prefers slightly acidic to neutral soil pH.
- Sunlight: Plant in full sun to partial shade. It can tolerate some shade, but flowering and fruiting may be reduced.
- Hardiness Zones: Cornus Rugosa is hardy in USDA zones 3-8.
Common Pests & Diseases
Cornus Rugosa is relatively pest and disease resistant, but it can be susceptible to some problems. Here are some common pests and diseases to watch out for:
- Anthracnose: This fungal disease can cause leaf spots, twig cankers, and dieback. It is more common in wet conditions.
- Leaf spot: This fungal disease causes small, dark spots on the leaves. It is more common in wet conditions.
- Scale insects: These small insects can suck sap from the plant, causing stunted growth and yellowing leaves.
- Spider mites: These tiny pests can cause yellowing leaves and webbing on the plant.
Habitat
Cornus Rugosa is native to North America, where it can be found in wetlands, stream banks, and woodlands. It prefers moist soils and can tolerate some flooding. It is an important food source for wildlife, with the berries being eaten by birds and mammals.
Question and Answer
Q: Can Cornus Rugosa be grown in containers?
A: While it is possible to grow Cornus Rugosa in containers, it may not thrive as well as it would in the ground. The plant has a spreading root system and may become root-bound in a container, which can stunt its growth and reduce its vigor.
Q: How often should I prune Cornus Rugosa?
A: Cornus Rugosa does not require regular pruning, but it can be pruned to remove dead or diseased wood, shape the plant, or control its size. Prune in late winter to early spring before new growth begins.
Q: Is Cornus Rugosa a good plant for erosion control?
A: Yes, Cornus Rugosa can be used for erosion control. Its spreading root system helps to stabilize soil, and its dense growth habit can help to prevent erosion. It is also tolerant of wet soils, making it a good choice for areas prone to flooding.
Q: How long does it take for Cornus Rugosa to produce fruit?
A: Cornus Rugosa typically begins to produce fruit 2-3 years after planting. The fruit ripens in late summer to early fall and persists into winter.
Related Plants
- Cornus sericea (Red Osier Dogwood)
- Cornus stolonifera (Swamp Dogwood)
- Cornus amomum (Silky Dogwood)
- Cornus alba (Tatarian Dogwood)
References
- “Cornus Rugosa.” Missouri Botanical Garden, www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=c340.
- “Cornus Rugosa.” Plant Database, www.wildflower.org/plants/result.php?id_plant=CORU.
- “Cornus Rugosa.” USDA Plants Database, plants.usda.gov/core/profile?symbol=CORU2.
