Horkelia

Description

Horkelia is a genus of flowering plants in the rose family (Rosaceae) that includes about 45 species. Native to North America, Horkelia is a low-maintenance plant that is easy to grow in many types of gardens. It is particularly popular among rock garden enthusiasts due to its attractive foliage and delicate flowers. Horkelia is named after botanist F. W. Horkel, who collected many specimens in California in the 19th century.

Taxonomic Information

Appearance

Horkelia plants typically have low-growing, spreading foliage that forms a dense mat. The leaves are usually green or gray-green and are typically deeply lobed or toothed. Horkelia flowers are small, ranging from white to yellow or pink, and usually bloom in late spring or early summer. The flowers are held on thin, wiry stems that rise above the foliage. Horkelia plants are typically 6-12 inches tall and can spread up to 2 feet wide.

Care Guide

Horkelia is a low-maintenance plant that is easy to grow in many types of gardens. Here are some tips for caring for your Horkelia:

• Water: Horkelia prefers well-drained soil that is kept moderately moist. Avoid overwatering, as this can lead to root rot.
• Fertilization: Horkelia does not require much fertilization. If desired, you can apply a balanced fertilizer in the spring.
• Soil: Horkelia prefers well-drained soil that is slightly acidic. Amend heavy clay soils with organic matter to improve drainage.
• Sunlight: Horkelia prefers full sun to partial shade. In hot climates, it may benefit from afternoon shade.
• Hardiness Zones: Horkelia is hardy in USDA zones 5-9.

Common Pests & Diseases

Horkelia is generally resistant to pests and diseases. However, it may be susceptible to root rot if overwatered. Watch for signs of wilted or yellowing foliage, which may indicate root rot. If caught early, this can often be remedied by reducing watering and improving drainage.

Habitat

Horkelia is native to North America and can be found in a variety of habitats, from meadows to rocky slopes. It is particularly well-suited to dry, rocky soils and can thrive in xeric gardens. Horkelia is an excellent choice for rock gardens, slopes, and other areas with well-drained soil.

Question and Answer

Q: Is Horkelia a good plant for xeric gardens?
A: Yes, Horkelia is an excellent choice for xeric gardens due to its low water requirements and tolerance for dry, rocky soils.

Q: Can Horkelia be grown in containers?
A: Yes, Horkelia can be grown in containers as long as the soil is well-drained and the container is large enough to accommodate its spreading habit.

Q: When is the best time to plant Horkelia?
A: Horkelia should be planted in the spring or fall, when the soil is cool and moist.

Q: Does Horkelia attract pollinators?
A: Yes, Horkelia flowers are attractive to bees and other pollinators.

Related Plants

• Potentilla
• Geum
• Sibbaldiopsis
• Fragaria

References

• “Horkelia.” USDA Plants Database, https://plants.usda.gov/core/profile?symbol=HORKA.
• “Horkelia.” Missouri Botanical Garden, https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=279972&isprofile=0&basic=horkelia.
• “Horkelia.” Plant Delights Nursery, https://www.plantdelights.com/products/horkelia.