Hemimeris

Description

Hemimeris is a genus of flowering plants that belongs to the family Scrophulariaceae. It comprises about 20 species of annual or perennial herbs or subshrubs that are native to Africa and the Arabian Peninsula. The genus is characterized by its opposite leaves and showy flowers that come in shades of pink, purple, or white. Hemimeris flowers are borne in clusters on long stalks and have a funnel-shaped corolla with five lobes. The fruit is a capsule that contains numerous small seeds.

Taxonomic Information

Appearance

Hemimeris plants vary in size depending on the species, but most grow to a height of 30 to 60 cm (12 to 24 inches). They have opposite leaves that are ovate to lanceolate in shape and are up to 5 cm (2 inches) long. The leaves are usually hairy and have toothed or serrated edges. The flowers are produced in clusters at the top of the stem and are about 2 to 3 cm (0.8 to 1.2 inches) across. The corolla is funnel-shaped with five lobes and can be pink, purple, or white in color. Hemimeris blooms from spring to fall.

Care Guide

Water

Hemimeris plants prefer moist but well-drained soil. Water them regularly, especially during dry periods. Avoid overwatering, as this can lead to root rot.

Fertilization

Feed Hemimeris plants with a balanced fertilizer every two to three weeks during the growing season. This will help promote healthy growth and abundant flowering.

Soil

Hemimeris plants grow best in well-drained soil that is rich in organic matter. A pH range of 6.0 to 7.5 is ideal.

Sunlight

Hemimeris plants require full sun to partial shade. They can tolerate some shade but will not flower as well in low light conditions.

Hardiness Zones

Hemimeris plants are hardy in USDA zones 9 to 11. They can be grown as annuals in cooler climates.

Common Pests & Diseases

Hemimeris plants are generally not prone to pests and diseases. However, they can be affected by aphids, spider mites, and whiteflies. To prevent infestations, keep the plants healthy and well-watered. If necessary, treat with an insecticidal soap or neem oil.

Habitat

Hemimeris plants are native to Africa and the Arabian Peninsula. They grow in a variety of habitats, including grasslands, savannas, and rocky areas. Hemimeris is often found growing in disturbed areas, such as roadsides and fields.

Question and Answer

Q: How often should I water my Hemimeris plant?

A: Water your Hemimeris plant regularly, especially during dry periods. Avoid overwatering, as this can lead to root rot.

Q: When does Hemimeris bloom?

A: Hemimeris blooms from spring to fall.

Q: What are the common pests and diseases that affect Hemimeris plants?

A: Hemimeris plants are generally not prone to pests and diseases. However, they can be affected by aphids, spider mites, and whiteflies. To prevent infestations, keep the plants healthy and well-watered. If necessary, treat with an insecticidal soap or neem oil.

Q: What is the ideal pH range for Hemimeris plants?

A: Hemimeris plants grow best in soil with a pH range of 6.0 to 7.5.

Related Plants

• Verbascum
• Penstemon
• Digitalis
• Lamium
• Agastache

References

• “Hemimeris.” Flora of Zimbabwe, www.zimbabweflora.co.zw/genus.php?id=165. Accessed 13 May 2021.
• “Hemimeris.” PlantZAfrica, www.plantzafrica.com/plantgh/hemimeris.htm. Accessed 13 May 2021.
• “Hemimeris.” Royal Horticultural Society, www.rhs.org.uk/Plants/286472/Hemimeris/Details. Accessed 13 May 2021.