Lithotoma

Description

Lithotoma is a genus of flowering plants that belong to the family Phrymaceae. This genus comprises of about nine species of perennial herbs that are native to North America. They are known for their beautiful, tubular-shaped flowers that bloom in shades of pink, red, and purple. The name Lithotoma comes from the Greek words “lithos” meaning stone and “tome” meaning cut, which refers to the sharp, stone-like edges of the leaves.

Taxonomic Information

Appearance

Lithotoma plants can grow up to 2-3 feet in height and have a spread of about 2-3 feet. The leaves are lance-shaped with serrated edges and are arranged opposite each other on the stem. The flowers are tubular-shaped and grow in clusters at the top of the stem. They bloom from late spring to early fall and come in shades of pink, red, and purple. The fruit is a capsule that contains small, black seeds.

Care Guide

Water

Lithotoma plants prefer moist soil but are susceptible to root rot if overwatered. Water the plant deeply once a week, or more frequently during hot and dry weather.

Fertilization

Lithotoma plants do not require much fertilization. Fertilize them once in the spring with a balanced, slow-release fertilizer.

Soil

Lithotoma plants thrive in well-draining soil that is rich in organic matter. They prefer a slightly acidic soil with a pH between 5.5 and 6.5.

Sunlight

Lithotoma plants prefer full sun to partial shade. They can tolerate some shade but will not bloom as profusely.

Hardiness Zones

Lithotoma plants are hardy in USDA zones 7-10.

Common Pests & Diseases

Lithotoma plants are generally disease-resistant but can be susceptible to spider mites and aphids. To prevent these pests, spray the plants with a strong jet of water or treat with an insecticidal soap.

Habitat

Lithotoma plants are native to North America and can be found in a variety of habitats, including meadows, prairies, and open woods. They prefer well-draining soil and full sun to partial shade.

Question and Answer

Q: How often should I water my Lithotoma plant?

A: Water the plant deeply once a week, or more frequently during hot and dry weather.

Q: What is the ideal pH for Lithotoma plants?

A: Lithotoma plants prefer a slightly acidic soil with a pH between 5.5 and 6.5.

Q: What are some common pests that affect Lithotoma plants?

A: Lithotoma plants can be susceptible to spider mites and aphids.

Q: What is the hardiness zone for Lithotoma plants?

A: Lithotoma plants are hardy in USDA zones 7-10.

Related Plants

• Phryma leptostachya
• Leucosceptrum canum
• Mimulus ringens
• Graptopetalum paraguayense

References

• https://www.gardenia.net/plant-variety/lithotoma
• https://www.gardeningknowhow.com/ornamental/flowers/lithotoma/lithotoma-care.htm
• https://www.wildflower.org/plants/result.php?id_plant=LISP
• https://plants.usda.gov/core/profile?symbol=LISP2