Searsia Incisa

Description

Searsia Incisa, commonly known as the “Rhus Lancea” or the “African Sumac,” is a small to medium-sized shrub that belongs to the Anacardiaceae family. It is native to Southern Africa and is known for its attractive foliage and its efficacy in erosion control. This plant has a unique appearance that distinguishes it from other shrubs. It has a dense, bushy growth habit that can reach a height of 6-8 feet and a spread of 4-6 feet.

Taxonomic Information

Appearance

Searsia Incisa has a unique appearance that makes it stand out from other shrubs. Its leaves are compound and have a glossy, dark green color that turns red in autumn. The leaves are arranged alternately along the stem and are lance-shaped, measuring 2-4 inches long and 0.5-1 inch wide. The shrub produces small, yellow-green flowers that appear in spring and summer, followed by small, reddish-brown berries that attract birds. The bark is smooth and grey-brown, with a corky texture that becomes more pronounced as the shrub ages.

Care Guide

Searsia Incisa is a low-maintenance shrub that is easy to care for. Here are some tips on how to care for this plant:

Water

Searsia Incisa is drought-tolerant and can survive in dry conditions. However, it is important to water it regularly during the first year after planting to help it establish a strong root system. After that, it can be watered sparingly, only when the soil is dry to the touch.

Fertilization

The shrub does not require regular fertilization. However, you can apply a slow-release fertilizer in early spring to promote healthy growth.

Soil

Searsia Incisa grows best in well-draining soil that is rich in organic matter. It can tolerate a wide range of soil types, including sandy, loamy, and clay soil.

Sunlight

The shrub prefers full sun exposure but can tolerate partial shade. It can grow in a wide range of light conditions, from direct sunlight to dappled shade.

Hardiness Zones

Searsia Incisa is hardy in USDA zones 9-11. It can tolerate temperatures as low as 20°F (-7°C).

Common Pests & Diseases

Searsia Incisa is relatively resistant to pests and diseases. However, it can be susceptible to the following:

Pests

• Spider mites
• Scale insects
• Caterpillars

Diseases

• Root rot
• Anthracnose
• Powdery mildew

To prevent these problems, make sure to plant Searsia Incisa in well-draining soil and avoid overwatering. Regularly inspect the shrub for signs of pests and diseases and treat them accordingly.

Habitat

Searsia Incisa is native to Southern Africa and is commonly found in dry, rocky areas, and on hillsides. It is known for its efficacy in erosion control and is often used for landscaping and re-vegetation projects. The shrub can thrive in a wide range of soil and light conditions and can survive in harsh environments, making it an ideal plant for xeriscaping.

Question and Answer

Q: Is Searsia Incisa poisonous?

A: Yes, Searsia Incisa is toxic to both humans and animals. The plant contains a resinous sap that can cause skin irritation, and its berries are mildly toxic if ingested.

Q: How fast does Searsia Incisa grow?

A: Searsia Incisa is a slow-growing shrub that can take several years to reach its full height and spread. However, it can grow faster in optimal growing conditions.

Q: Can Searsia Incisa be grown in containers?

A: Yes, Searsia Incisa can be grown in containers as long as they are large enough to accommodate its root system. Make sure to use well-draining soil and water the plant regularly.

Q: Does Searsia Incisa attract wildlife?

A: Yes, Searsia Incisa is a bird-friendly plant that attracts a variety of bird species with its berries.

Related Plants

• Searsia Crenata
• Searsia Dentata
• Searsia Divaricata
• Searsia Glauca
• Searsia Gracilis

References

• https://www.sanbi.org/plant-of-the-week/searsia-incisa/
• https://www.gardeningknowhow.com/ornamental/shrubs/african-sumac/growing-african-sumac-trees.htm
• https://www.gardeningknowhow.com/ornamental/shrubs/african-sumac/african-sumac-information.htm
• https://www.thespruce.com/searsia-incisa-growing-profile-5071894