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Description
Xanthocyparis, commonly known as the Yellow Cypress or Nootka Cypress, is a genus of coniferous trees native to North America and Asia. This slow-growing evergreen tree can grow up to 70 feet tall and 20 feet wide, with a conical crown and a straight trunk that can reach up to 3 feet in diameter. The tree’s foliage is scale-like and flattened, with a bright green to blue-green color. The bark is thin, fibrous, and red-brown in color.
Taxonomic Information
| Domain | Eukarya |
|---|---|
| Kingdom | Plantae |
| Phylum | Pinophyta |
| Class | Pinopsida |
| Order | Pinales |
| Family | Cupressaceae |
| Genus | Xanthocyparis |
Appearance
Xanthocyparis trees have a unique and striking appearance. Their foliage is scale-like and flattened, with a bright green to blue-green color that turns bronze in the winter. The tree’s cones are small, round, and brown, with a diameter of about 0.4 inches. The bark is thin, fibrous, and red-brown in color, with a stringy texture that peels off in long strips. The tree’s overall shape is conical, with a straight trunk that can reach up to 3 feet in diameter.
Care Guide
Xanthocyparis trees are relatively low-maintenance and easy to care for. Here are some key things to keep in mind:- Water: Xanthocyparis trees prefer moist soil, so make sure to water them regularly, especially during hot and dry periods. However, avoid overwatering, as this can lead to root rot.- Fertilization: Xanthocyparis trees do not require much fertilization, but you can add a slow-release fertilizer in the spring if needed.- Soil: Xanthocyparis trees prefer well-draining soil that is rich in organic matter. Avoid heavy clay soils.- Sunlight: Xanthocyparis trees prefer full sun to partial shade. They can tolerate some shade, but too much shade can cause the tree to become spindly and weak.- Hardiness Zones: Xanthocyparis trees are hardy in zones 4-7.
Common Pests & Diseases
Xanthocyparis trees are generally resistant to pests and diseases, but they can still be susceptible to some issues. Here are some common problems to watch out for:- Canker: This fungal disease can cause brown or yellow spots on the tree’s bark, as well as dieback and distorted growth.- Root rot: Overwatering or poor drainage can lead to root rot, which can cause the tree’s roots to decay and eventually die.- Spider mites: These tiny pests can cause yellow or brown spots on the tree’s foliage, as well as webbing and leaf drop.
Habitat
Xanthocyparis trees are native to North America and Asia. In North America, they can be found along the coast from Alaska to California, as well as in the Rocky Mountains. In Asia, they are found in China and Japan. They prefer moist, well-draining soil and can tolerate a wide range of temperatures.
Question and Answer
Q: Are Xanthocyparis trees fast-growing?
A: No, Xanthocyparis trees are slow-growing and can take several years to reach their full size.
Q: Can Xanthocyparis trees tolerate salt spray?
A: Yes, Xanthocyparis trees can tolerate some salt spray, which makes them a good choice for coastal gardens.
Q: Do Xanthocyparis trees require pruning?
A: Xanthocyparis trees do not require much pruning, but you can remove any dead or damaged branches in the spring if needed.
Q: Are Xanthocyparis trees deer-resistant?
A: Yes, Xanthocyparis trees are deer-resistant, which makes them a good choice for gardens where deer are a problem.
Related Plants
– Cupressus arizonica (Arizona Cypress)- Chamaecyparis obtusa (Hinoki Cypress)- Thuja plicata (Western Red Cedar)- Juniperus communis (Common Juniper)
References
– “Xanthocyparis nootkatensis.” Missouri Botanical Garden. Accessed 15 August 2021. http://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=288349&isprofile=0&.- “Yellow Cypress.” The Spruce. Accessed 15 August 2021. https://www.thespruce.com/yellow-cypress-3269219.
