Aubrieta

Description

Aubrieta, also known as rock cress, is a genus of flowering plants in the cabbage family. It is a hardy, mat-forming perennial that is native to southern Europe and western Asia. Aubrieta plants have attractive, compact foliage and produce masses of small flowers that range in color from blue, purple, or pink. They are excellent ground cover plants, and can also be grown in rock gardens or containers.

Taxonomic Information

Appearance

Aubrieta plants have small, leathery leaves that are evergreen in some regions. The leaves vary in shape from rounded to oblong, and are typically about 1 inch long. The flowers are produced in dense clusters, and can cover the entire plant in a carpet of color. They are usually about 1 inch wide and have four petals that overlap to form a cross shape. Aubrieta flowers bloom in early spring and can last for several weeks.

Care Guide

Aubrieta plants require well-drained soil that is rich in organic matter. They prefer full sun to partial shade and are drought tolerant once established. Water regularly during the first growing season to help the plant establish roots. Fertilize once a month with a balanced fertilizer during the growing season. Aubrieta can be propagated from seed or by taking cuttings. It is hardy in USDA zones 4-8.

Common Pests & Diseases

Aubrieta is generally resistant to pests and diseases. However, it can be susceptible to root rot if soil conditions are too wet. Aphids and whiteflies may occasionally be a problem, but can usually be controlled with insecticidal soap.

Habitat

Aubrieta is native to rocky areas and cliff faces in southern Europe and western Asia. It prefers well-drained soil and full sun.

Question and Answer

Q: How often should I water my Aubrieta plants?

A: Water regularly during the first growing season to help the plant establish roots. Once established, Aubrieta is drought tolerant and does not require frequent watering.

Q: How do I propagate Aubrieta plants?

A: Aubrieta can be propagated by taking cuttings or by sowing seeds in early spring. Cuttings should be taken from new growth in late spring or early summer.

Q: Can Aubrieta be grown in containers?

A: Yes, Aubrieta can be grown in containers. Use well-draining soil and make sure the container has adequate drainage holes to prevent root rot.

Q: Does Aubrieta require pruning?

A: Aubrieta does not require regular pruning, but can be lightly trimmed after flowering to encourage bushier growth and more blooms.

Related Plants

• Arabis
• Iberis
• Alyssum
• Campanula

References

• “Aubrieta.” Missouri Botanical Garden, www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=f380.
• “Aubrieta.” Royal Horticultural Society, www.rhs.org.uk/plants/2143/aubrieta/details.
• “Aubrieta.” The Spruce, www.thespruce.com/growing-aubrieta-1403515.