Castela Emoryi

Description

Castela Emoryi, commonly known as Crucifixion Thorn, is a deciduous shrub that belongs to the Simaroubaceae family. It is native to the southwestern United States and northern Mexico. The plant’s name is derived from the long, sharp thorns that resemble the nails used in the crucifixion of Jesus Christ. The plant has a unique appearance and is often used for ornamental purposes due to its striking features.

Taxonomic Information

Appearance

Castela Emoryi can grow up to 20 feet tall and 10 feet wide. Its leaves are compound and have 5-11 leaflets that are pointed and oblong in shape. The plant produces small, yellow-green flowers that bloom in the spring and summer. The fruit of the plant is a small, woody capsule that contains a single seed. The most striking feature of the plant is its long, sharp thorns that are up to 3 inches in length.

Care Guide

Water

Castela Emoryi requires moderate watering during the growing season. The soil should be kept moist but not waterlogged. During the winter months, the plant requires less water, and the soil should be allowed to dry out slightly between waterings.

Fertilization

The plant benefits from regular fertilization, especially during the growing season. A balanced fertilizer should be used, and it should be applied according to the manufacturer’s instructions.

Soil

Castela Emoryi prefers well-draining soil that is slightly acidic. It can tolerate a wide range of soil types, including sandy and rocky soils.

Sunlight

The plant requires full sun to partial shade. It can tolerate some shade, but it will produce fewer flowers and have a less dense growth habit.

Hardiness Zones

Castela Emoryi is hardy in USDA zones 9 through 11.

Common Pests & Diseases

Castela Emoryi is relatively pest and disease-free. However, it can be susceptible to spider mites and scale insects. These pests can be controlled with insecticidal soap or neem oil. The plant can also be affected by root rot if it is overwatered or planted in poorly draining soil.

Habitat

Castela Emoryi is native to the southwestern United States and northern Mexico. It can be found in a variety of habitats, including deserts, scrublands, and rocky slopes.

Question and Answer

Q: Is Castela Emoryi a drought-tolerant plant?

A: Yes, Castela Emoryi is drought-tolerant once established. However, it will benefit from regular watering during the growing season.

Q: How often should I fertilize Castela Emoryi?

A: Castela Emoryi should be fertilized regularly during the growing season. Follow the manufacturer’s instructions for application rates.

Q: Can Castela Emoryi be grown in containers?

A: Yes, Castela Emoryi can be grown in containers. Choose a large pot with good drainage and use a well-draining potting mix.

Q: Does Castela Emoryi have any medicinal properties?

A: Castela Emoryi has been used in traditional medicine to treat a variety of ailments, including fever, pain, and inflammation. However, more research is needed to confirm its medicinal properties.

Related Plants

• Castela Mexicana
• Castela Peninsularis
• Castela Tortuosa

References

• “Castela Emoryi.” Lady Bird Johnson Wildflower Center.
• “Castela Emoryi.” Arizona State University.
• “Castela Emoryi.” The Jepson Herbarium.