Euphorbia Tetragona

Description

Euphorbia Tetragona, also known as the square-stemmed spurge, is a succulent plant that belongs to the Euphorbia family. It is native to South Africa and is widely cultivated as an ornamental plant. It has a unique four-sided stem that grows upright and can reach up to 4 feet in height. The stem is covered in small leaves that are arranged in pairs along the edges of each side. The leaves are usually green, but can turn reddish-brown under stress. In the summer, Euphorbia Tetragona produces small, inconspicuous flowers that are surrounded by a group of bright red bracts.

Taxonomic Information

Appearance

Euphorbia Tetragona is a striking succulent plant that is prized for its unique four-sided stem and bright red bracts. The stem can grow up to 4 feet in height and is covered in small, green leaves that are arranged in pairs along the edges of each side. The leaves are slightly curved and have a pointed tip. Under stress, the leaves can turn reddish-brown, adding to the plant’s unique appearance. In the summer, Euphorbia Tetragona produces small, greenish-yellow flowers that are surrounded by a group of bright red bracts. The flowers are not particularly showy, but the colorful bracts make up for it.

Care Guide

Euphorbia Tetragona is a relatively easy plant to care for, making it a good choice for beginner gardeners. Here are some tips to help you grow and care for this succulent:

Water

Euphorbia Tetragona prefers well-draining soil and does not like to be overwatered. Water the plant only when the soil is completely dry, and make sure to drain any excess water from the pot or container to prevent root rot.

Fertilization

Fertilize Euphorbia Tetragona once a month during the growing season (spring and summer) with a balanced fertilizer. Do not fertilize during the winter months when the plant is dormant.

Soil

Euphorbia Tetragona prefers well-draining soil that is rich in organic matter. A mix of cactus soil and perlite is a good choice for this succulent.

Sunlight

Euphorbia Tetragona prefers bright, indirect sunlight. It can tolerate some direct sunlight, but too much can cause the leaves to scorch.

Hardiness Zones

Euphorbia Tetragona is hardy in USDA zones 9-11. If you live in a colder climate, consider growing this plant indoors or in a greenhouse.

Common Pests & Diseases

Euphorbia Tetragona is relatively pest and disease-free, but here are a few issues to watch out for:

Mealybugs

Mealybugs can infest Euphorbia Tetragona and cause damage to the leaves and stem. Use a cotton swab dipped in rubbing alcohol to remove any mealybugs you see.

Root Rot

Overwatering can cause root rot in Euphorbia Tetragona. Make sure the soil is well-draining and allow it to dry out completely before watering again.

Habitat

Euphorbia Tetragona is native to South Africa and is found in dry, rocky areas. It is a hardy plant that can tolerate drought and hot temperatures, making it an excellent choice for xeriscaping.

Question and Answer

Q: Is Euphorbia Tetragona toxic to pets?

A: Yes, Euphorbia Tetragona is toxic to pets and humans. The sap can cause skin irritation and is poisonous if ingested.

Q: Can I grow Euphorbia Tetragona indoors?

A: Yes, Euphorbia Tetragona can be grown indoors as long as it receives bright, indirect sunlight.

Q: How often should I fertilize Euphorbia Tetragona?

A: Fertilize Euphorbia Tetragona once a month during the growing season (spring and summer) with a balanced fertilizer. Do not fertilize during the winter months when the plant is dormant.

Q: How do I propagate Euphorbia Tetragona?

A: Euphorbia Tetragona can be propagated from stem cuttings. Allow the cuttings to dry out for a few days before planting them in well-draining soil.

Related Plants

• Euphorbia Tirucalli
• Euphorbia Milii
• Euphorbia Lactea
• Euphorbia Ingens

References

• “Euphorbia Tetragona.” The Spruce, https://www.thespruce.com/euphorbia-tetragona-care-4683869.
• “Euphorbia Tetragona.” World of Succulents, https://worldofsucculents.com/euphorbia-tetragona-square-stemmed-spurge/.
• “Euphorbia Tetragona.” Gardening Know How, https://www.gardeningknowhow.com/ornamental/cacti-succulents/euphorbia/euphorbia-tetragona.htm.