Omphalodes

Description

Omphalodes is a genus of perennial plants that belongs to the Boraginaceae family. This genus includes around 20 species, which are native to Europe and Asia. Omphalodes plants are often grown as ornamental plants due to their attractive flowers and foliage. They are commonly known as navelwort or blue-eyed Mary.

Taxonomic Information

Appearance

Omphalodes plants are low-growing perennials that usually reach a height of 20-30 cm. They have a clump-forming habit and spread outwards by rhizomes. The leaves are simple, alternate, and ovate in shape. They are usually green, but some species have variegated or silvery foliage. The flowers are small and star-shaped, with five petals. They are usually blue, but some species have pink or white flowers. The flowers are borne in loose clusters on long stems that rise above the foliage.

Care Guide

Water: Omphalodes plants prefer moist soil, so water them regularly during the growing season. However, avoid overwatering, as this can cause root rot.

Fertilization: Omphalodes plants do not require heavy fertilization. You can apply a balanced fertilizer once a month during the growing season to promote healthy growth and flowering.

Soil: Omphalodes plants prefer well-draining soil that is rich in organic matter. They can tolerate slightly acidic to neutral soil pH.

Sunlight: Omphalodes plants prefer partial shade to full shade. They can tolerate some morning sun, but avoid exposing them to hot afternoon sun.

Hardiness Zones: Omphalodes plants are hardy in USDA zones 5-8.

Common Pests & Diseases

Omphalodes plants are generally disease and pest resistant. However, they can sometimes be affected by powdery mildew, rust, and slugs. You can prevent powdery mildew and rust by providing good air circulation and avoiding overhead watering. To control slugs, use physical barriers or slug baits.

Habitat

Omphalodes plants are native to Europe and Asia. They grow in shady areas of woodlands, meadows, and rocky slopes. They prefer moist soil and can tolerate cool temperatures.

Question and Answer

Q. Can Omphalodes plants tolerate drought?

A. No, Omphalodes plants prefer moist soil and cannot tolerate drought.

Q. How often should I fertilize Omphalodes plants?

A. You can fertilize Omphalodes plants once a month during the growing season.

Q. Can I grow Omphalodes plants in containers?

A. Yes, you can grow Omphalodes plants in containers as long as the soil is well-draining and they receive partial to full shade.

Q. When is the best time to plant Omphalodes?

A. The best time to plant Omphalodes is in spring or fall, when the soil is moist and temperatures are cool.

Related Plants

• Brunnera macrophylla
• Myosotis
• Ceratostigma
• Cynoglossum

References

• “Omphalodes.” Missouri Botanical Garden. Accessed 12 October 2021. <https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=l720>
• “Omphalodes.” The Royal Horticultural Society. Accessed 12 October 2021. <https://www.rhs.org.uk/plants/10859/omphalodes/details>
• “Omphalodes.” Plants of the World Online. Accessed 12 October 2021. <http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:30095205-2>