Introducing the Euphorbia ingens, a vibrant member of the Euphorbia genus. Native to Southern Africa, the Euphorbia ingens has several other common names, such as the Candelabra tree, Candelabra cactus, cowboy cactus, and African candelabra tree.  

The candelabra tree gets its name from its distinctive growth habit, which resembles a candelabra or branching tree. 

The Euphorbia candelabra is an impressive succulent tree that can reach heights of 40 feet in its natural habitat. When grown indoors, this tree succulent typically can grow up to 8 to 10 feet tall. However, regardless of its size, it is a relatively easy plant to care for. 

The Euphorbia ingens is a succulent tree that has thick, 4-lobed stems that are segmented and have a columnar growth structure as they mature, giving them a cactus-like appearance. The stems are typically dark green but can develop a grayish hue as they mature.

Unlike traditional cacti, this Euphorbia ingens doesn't have true spines. Instead, it has clusters of small, thorn-like structures called spines that grow along the ridges of its stems. These spines are actually modified leaves and serve as a defense mechanism against herbivores.

The flowers of Euphorbia ingens candelabra tree are small and yellow-green in color, arranged in clusters at the tips of the branches. These greenish-yellow flowers have a distinctive shape, with a cup-like structure called a cyathium that contains both male and female flowers. The cyathia are surrounded by colorful bracts that can vary in color from yellow to orange. They also produced dark red to purple fruits. When in bloom, the candelabra tree becomes a stunning sight, with its tall, branching structure adorned with these beautiful flowers.

Additionally, Euphorbia ingens is considered mildly toxic for both humans and pets. It contains milky latex or sap that can cause skin irritation and allergic reactions in some people. If you come into contact with the sap, wash the affected area with soap and water. Keep the Euphorbia candelabra tree out of reach of children and pets to prevent any accidental ingestion.

Watering Needs 

When it comes to watering the Euphorbia ingens, it's important to strike a balance. This Candelabra tree has adapted to survive in arid conditions, so it doesn't require frequent watering like most Euphorbias. Improper watering or overwatering can actually harm the candelabra tree, leading to root rot and other issues. 

To meet the watering needs of the Euphorbia ingens, it's best to follow the "soak and dry" method. This means thoroughly watering the Euphorbia plant and allowing the soil to dry out completely before watering again. 

In the spring and summer, during the growing season, you can water your Candelabra tree succulent once every two to three weeks. 

In the fall and winter during the dormant season, you can reduce watering to once a month or even less, as your Euphorbia ingens require less moisture during this time. 

 If it doesn't receive enough water for an extended period of time, then discoloration, pale stems, and browning can occur, leading to stunted growth. In contrast, overwatering can cause root rot and fungal infection.  

When watering, make sure to water the soil directly and avoid getting water on the stems or leaves, as this can lead to rot. To avoid overwatering, always check the soil moisture level before watering. Remember, it's always better to be underwater than to overwater the drought-tolerant Euphorbia ingens for healthy growth.  

Light Requirements 

When it comes to providing the right lighting for your Euphorbia ingens indoors, it thrives in bright, indirect light, so placing it near a window where it can receive plenty of filtered sunlight is ideal. Avoid exposing it to direct sunlight, especially during the hottest parts of the day, as this can cause sunburn and damage the Candelabra tree. 

If you're growing the Euphorbia ingens candelabra tree outdoors, it's important to find a spot that receives full sun or partial shade. This Euphorbia Candelabra plant loves basking in the sun and needs at least six hours of direct sunlight each day to thrive. However, if you live in an extremely hot climate, providing some afternoon shade can help protect the Euphorbia plant from intense heat. 

Just make sure your Candelabra tree still receives ample sunlight throughout the day. It's worth noting that the Euphorbia candelabra can tolerate a wide range of light conditions, but it tends to grow best in bright, indirect light or full sun. 

Optimal Soil & Fertilizer Needs 

The Euphorbia candelabra tree plant likes very airy, porous soil with a soil pH of 5.5 - 6.5. These Euphorbia ingens require fast-draining soil that dries completely between waterings as they cannot tolerate wet soil. It must have a sandy texture and a low water-holding capacity, just like desert soil.  Soggy soil can damage your Euphorbia ingens and contribute to bacterial and fungal rot. In addition, because of a lack of oxygen, soggy soil substitutes air pockets with water, resulting in an anaerobic environment that can kill your Euphorbia ingens.  

Instead, make or buy a well-draining potting mix, or ideally, use our specialized succulent potting mix that contains 5 natural substrates and mycorrhizae to promote the development of a strong root system that helps your succulent tree to thrive. 

As for fertilizing, the Euphorbia ingens don't require frequent feeding like other succulent plants. In fact, it's best to err on the side of caution and provide minimal fertilization. During the active growing season, which is typically spring, you can use a balanced (5-10-5), water-soluble fertilizer diluted to half strength. Apply the fertilizer once a year to provide a gentle boost of nutrients. 

Remember, it's always better to under-fertilize than to over-fertilize the Euphorbia ingens. Too much fertilizer can lead to excessive growth, weak stems, and other issues. Observing your candelabra tree and adjusting your fertilizing schedule based on its growth and overall health is key to keeping it happy and thriving. 

 Hardiness Zones & More 

Native to the warm, dry climates, the Euphorbia ingens thrives indoors between 60°F and 85°F temperatures. It can handle slightly cooler temperatures during the winter months, but it's best to keep it away from drafts or cold windowsills. The Euphorbia ingens is quite adaptable and can tolerate average indoor humidity levels. It doesn't require any specific humidity requirements and can thrive in a variety of indoor environments. However, it's important to avoid excessively dry conditions or extremely high humidity, as these extremes can negatively impact the plant’s health. 

When you are growing your Euphorbia ingens outdoors, it is typically suitable for USDA zones 10-11 year-round. It thrives in warm climates and can handle temperatures as low as 30 degrees Fahrenheit for short periods. However, it's important to protect your Euphorbia succulent tree from frost and freezing temperatures, as prolonged exposure can cause damage or even kill the cactus. The Euphorbia ingens can handle a range of humidity levels outdoors. It is relatively tolerant of both dry and humid conditions. However, if you live in an area with high humidity, it's important to ensure good air circulation around your candelabra tree to prevent the development of fungal diseases. 

Remember, providing the right temperature and humidity conditions is important for the Euphorbia ingens to thrive, both indoors and outdoors. Monitoring the plant's response and making adjustments based on its needs will help ensure its optimal growth and overall health. 

Additionally, to propagate Euphorbia ingens by stem cuttings, select a healthy, mature stem at least 6 inches long and cut it just below a node. Over time, the cutting will develop roots and grow, but be patient, as it may take weeks or months for roots to form. Wear gloves and exercise caution when handling or propagating the Euphorbia plant. 

The Bottom Line 

Overall, the Euphorbia ingens (Candelabra tree) is a fascinating succulent tree that can add a unique touch to your indoor or outdoor space. It's relatively easy to care for as long as you provide it with the right conditions. Keep in mind that it prefers bright, indirect light and well-draining soil. Avoid overwatering and protect it from frost or freezing temperatures outside of the USDA zones 10-11. This euphorbia succulent tree is perfect for anyone seeking a low-maintenance addition to their succulent or rock garden. 

With the help of Euphorbia ingens tall succulent tree, you'll start to spend less time maintaining your garden and more time taking in its beauty!