Pterostyrax

Description

Pterostyrax is a genus of deciduous trees and shrubs that belong to the Styracaceae family. This plant is native to East Asia, particularly in China, Japan, and Korea. Pterostyrax typically grows up to 20-30 feet tall, and it is prized for its white, fragrant flowers that bloom in the late spring to early summer.

Taxonomic Information

Appearance

Pterostyrax has a rounded, spreading habit with a moderate growth rate. Its leaves are alternate, simple, and ovate-shaped, measuring 3-6 inches long and 2-4 inches wide. The foliage is dark green in the summer, turning yellow to orange in the fall. The plant’s white, fragrant flowers form in long, drooping clusters, measuring 3-6 inches long. The fruit of Pterostyrax is a dry, woody capsule that contains winged seeds.

Care Guide

Water

Pterostyrax prefers moist but well-drained soil. Water the plant regularly during dry spells, but be careful not to overwater, as this can lead to root rot.

Fertilization

Feed Pterostyrax with a slow-release fertilizer in the spring, following the manufacturer’s instructions. Avoid fertilizing in the fall, as this can encourage new growth that may not have time to harden off before winter.

Soil

Pterostyrax prefers acidic to neutral soil that is rich in organic matter. Amend the soil with compost or well-rotted manure before planting if necessary.

Sunlight

Pterostyrax prefers partial shade to full sun. In hot climates, it may benefit from some afternoon shade.

Hardiness Zones

Pterostyrax is hardy in USDA zones 5-8.

Common Pests & Diseases

Pterostyrax is relatively pest and disease-resistant, but it may be susceptible to leaf spot and powdery mildew. Treat these conditions with a fungicide if necessary.

Habitat

Pterostyrax is native to East Asia, particularly in China, Japan, and Korea. It prefers moist, well-drained soil and partial shade to full sun.

Question and Answer

Q: How often should I water my Pterostyrax?

A: Water your Pterostyrax regularly during dry spells, but avoid overwatering.

Q: What is the best time of year to fertilize my Pterostyrax?

A: Fertilize your Pterostyrax with a slow-release fertilizer in the spring, following the manufacturer’s instructions.

Q: What is the hardiness zone for Pterostyrax?

A: Pterostyrax is hardy in USDA zones 5-8.

Q: Where is Pterostyrax native to?

A: Pterostyrax is native to East Asia, particularly in China, Japan, and Korea.

Related Plants

• Pterostyrax corymbosus
• Pterostyrax hispida
• Pterostyrax psilophyllus
• Pterostyrax sinensis

References

• “Pterostyrax.” Missouri Botanical Garden, www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=286337. Accessed 5 May 2021.
• “Pterostyrax.” Plant Delights Nursery, www.plantdelights.com/pages/articles/pterostyrax.asp. Accessed 5 May 2021.
• “Pterostyrax.” Royal Horticultural Society, www.rhs.org.uk/Plants/24318/Pterostyrax/Details. Accessed 5 May 2021.