Euphorbia trigona, a cactus-like plant with a main erect stem and multiple smaller branches, is native to Central Africa. This is a lovely ornamental plant that may be grown indoors or outdoors and requires little maintenance.
- Plants of the African milk tree thrive in full sunlight for at least 5 to 8 hours every day. Steer clear of the afternoon sun. Grow in direct sunlight and mild shade outdoors or in a sunny window indoors with southern exposure.
- The 70s and 80s are the ideal temperatures for Euphorbia trigona. If exposed to conditions of high temperatures or harsh sunlight, it may become stressed.
- When nighttime temperatures fall below 55 oF, move these plants to a bright area indoors because they are not cold tolerant if cultivated outside.
- native to subtropical and arid regions Plants that tolerate drought include Euphorbia trigona. Their soil should be completely dry before being thoroughly watered.
- These plants favor a sandy, well-draining soil mixture. The best potting soil is for succulents or cacti. To increase the grit and drainage of standard potting soil, you can add up to 50% sand or pumice.
- Euphorbia’s root systems are incredibly shallow. The tops of mature plants can be fairly heavy. To prevent the plant from falling over, think about adding a layer of top dressing, such as lava rocks, to cover the soil and add more weight. You may also use a stake to hold the plant upright.
- These plants bloom in the spring and summer with tiny white or yellow blooms. Indoor-grown plants and those in pots hardly ever bloom.
- These plants don’t need fertilizer, however it can be applied to help plants growing in containers or to improve poor soil. Apply a water-soluble, balanced fertilizer once a month while diluting it by half.
- Stem cuttings are a method of plant propagation for the African milk tree. When cutting these plants, use extreme caution because the sap they produce can be extremely irritating to the skin.
- Before dusting with rooting hormone and planting cuttings in soil, let cuttings callus for a few days.
- Pests do not commonly affect Euphorbia trigona. They are more likely to contract bacterial or fungal infections, despite not being very frequent. Keep an eye out for odd spots on stems and cut off any afflicted plant portions.
- The diseased portion can be removed, and the rest of the plant can still be used if the illness has not spread. It is more difficult to treat or reduce infections that have spread across the entire plant, and the plant may even need to be destroyed.
- Overwatering might cause root rot, which is another issue. Always choose the safe route and assume the worst.
- Growing these plants requires little upkeep. Only unhealthy or damaged areas of the plant require pruning.
- These plants don’t require frequent repotting because of their extremely shallow root systems.
- Every Euphorbia plant has a poisonous sap that is highly irritating to the skin and extremely toxic if consumed. Keep children and pets out of reach. When handling this plant, use gloves and exercise extreme caution.
Euphorbia Trigona: Succulent or cactus?
A succulent that requires little maintenance, Euphorbia trigona is a native of West Africa. With its erect stems, ridges of transient leaves, and thorns, it adds an interesting architectural element to interior designs.
Euphorbia—is it a cactus?
The succulent members of the Euphorbia genus of plants are renowned for their graceful and architectural appearance.
Due to the fact that many of the common kinds are stem succulents, these plants are sometimes mistaken for cacti. However, they actually belong to a completely separate genus that has nearly 2000 species!
This article will discuss what makes Euphorbia so distinctive and remarkable, why it is not a cactus, how to care for Euphorbia, which species are some of the more well-known ones, and other topics.
There are a few key differences which I will break down:
Cacti are only indigenous to the New World, with the exception of the Rhipsalis baccifera. There are no cacti in Europe, Russia, Australia, nor in Africa or Asia (except for that one species of Rhipsalis). On the other hand, euphorbia are native to many regions of the world, but those from Africa and India are the most cactus-like.
Both cacti and euphorbias have prickles, however the prickles on each species are unique. All cacti have areoles, which are structures that serve as the source of the spines, which are modified leaves. The most common thorns on euphorbias are modified stems that are typically seen in pairs. Areoles do not exist in euphorbias.
Cacti and succulent Euphorbias both retain water for dry spells, but latex, a hazardous sap, is present in all Euphorbias. It is most likely a Euphorbia if you cut open a succulent and it weeps this white fluid.
Cacti and Euphorbias both produce flowers, however the blossoms are typically extremely dissimilar. Euphorbia blooms are often subtle, whereas cactus blossoms are frequently spectacularly colorful and striking. Flowers from euphorbia are frequently a light greenish-yellow tint. However, some Euphorbias, such as Euphorbia milii, have vivid flowers (Crown of Thorns).
So there you have it—in a nutshell, the similarities and differences between cacti and euphorbias. Next time you see a spiny succulent, you’ll be able to identify it as a cactus, a Euphorbia, or something else by taking a closer look.
Is a milk plant from Africa a cactus?
Central Africa is the original home of the African milk tree (Euphorbia trigona). Because of its fervent and quick growth, it is frequently used as a hedge. Although it has names like “candelabra cactus,” “cathedral cactus,” “friendship cactus,” and “good luck cactus,” this plant is essentially a succulent. It has three unique sides that are ridged and have triangular stems. Thorns and teardrop-shaped leaves are scattered over the ridges. This plant has a growing season that is lush and green, with new growth that has a pale green tint. The Rubra or Royal Red cultivar is well known for its striking hue, which late in the season develops bright red accents.
The African milk tree has a long lifespan and grows rapidly, about 1 to 2 feet per year, to a height of 9 feet. However, this plant will only reach around half of its maximum height when planted indoors. African milk tree can only be grown outside by North American gardeners in arid climates with nighttime lows of 50 degrees Fahrenheit or above (parts of Texas, California, Florida, and Arizona). For these fortunate few, the plant offers a striking landscape element that is uncommon in American gardens.
The African milk tree’s sap can irritate the skin, eyes, and mouth and is poisonous to both people and pets. So much so that it may result in convulsions if ingested and may also result in blisters, severe eye irritation, and swallowing.
Cacti are they succulents?
What distinguishes a succulent from a cactus? The only plant that can survive in a hot south window, where the light shines through the glass intensified, is a cactus. Any plant that stores water in juicy leaves, stems, or roots to resist recurring droughts is considered a succulent. Some people accept non-fleshy desert plants while others exclude plants with flesh, such as epiphytic orchids (yuccas, puyas).
Cactus is merely a type of succulent that can hold moisture and is classified separately from other succulents (cacti is the plural form of cactus in Latin) (Cactaceae). On the other hand, not every succulent is a cactus. In addition to being close relatives of the pointsetta, geranium, lily, grape, amaryllis, crassula, daisy, and milkweed, succulents are members of approximately 40 botanical families that are distributed throughout the world.
The name “cactus” derives from the Greek word “kaktos,” which means “spiny plant.” The ancient Greeks used this word to describe a species that was actually an artichoke variety rather than a cactus. 2000 years later, Linnaeus, who classified plants, gave a family of plants with distinctive characteristics like thick stems that served as water reservoirs, prickly or hairy coverings, and few, if any, leaves the name Cactaceae.
Cacti are simple to spot. They rarely have leaves because they have to work so hard to stay alive. They have stems that have been altered into cylinders, pads, or joints that store water during dry spells. Skin thickness lowers evaporation. For defense against browsing animals, the majority of species have bristles or spines, but some lack them, and others have long hair or a woolly covering. Large and vibrant flowers are the norm. Fruit may be both edible and colorful.
Every cactus has leaves when it is still a seedling. Additionally, some plants briefly produce tiny leaves on their new growth each spring. The majority of cactus progressively lost their leaves as shifting climatic patterns transformed native environments into deserts, evaporating too much limited water into the dry air. They switched to storing the water that was available in their stems. To adapt the size of their evaporation surfaces to changing conditions, many may modify their shape. When moisture is abundant, ribs that resemble an accordion can extend; when there is a drought, they can contract.
The majority of succulents, such as aloes, hawthorias, crassulas, and echeveria, originated in environments with less harsh conditions than cactus, such as those with rainy seasons followed by protracted dry seasons. They all have leaves. Their leaves gradually grew fattened by water-storing tissues and covered in a waxy or horny substance that lessens evaporation from the surface to help them get through the dry spells.
From Canada, through Central America, the West Indies, and south to the chilly regions of Chile and Patagonia, the cactus (Cactaceae) family can be found (southern end of South America). The largest collection may be in Mexico, but there are also a large number in the western deserts of the United States and at higher elevations in the Cordilleras of Peru, Bolivia, and Argentina.
The majority of succulents are native to milder, semi-desert regions of the planet (Mexico, South Africa). Some (such as sedums and sempervivums) are native to cooler regions where they thrive on sunny, rocky ledges and slopes. Although there are many succulents around the world, not all succulents are desert plants. They can be found on mountains, in jungles, and next to bodies of water. Succulents can be found in semi-arid parts of North and South America, Asia, and Africa, but many also live in rain forests. Succulents can be found in the mountains where they can survive inclement weather, strong winds, and poor soil. Aeonium is a succulent native to Africa, the Canary and Madeira Islands; Agave is a succulent native to the Americas; Aloe is a succulent native to Africa, the Mediterranean, and Atlantic islands; Cotyledon is a succulent native to semi-arid regions of Africa; Crassula is a succulent native to mostly Africa; Dudleya is a succulent native to coastal California and Mexico; Faucaria is a succulent native to South Africa; Sempervivum: North Africa, Asia Minor, and Central and Southern Europe.
How is a Euphorbia cactus grown?
All euphorbias require well-draining soil, especially the succulent forms. Although most will thrive in slightly alkaline soil as well, sandy soil with a pH between 5.0 and 7.0 that is slightly acidic to neutral is ideal. Euphorbia should be planted in a cactus/succulent potting mix when grown in containers.
How are euphorbia and cactus similar?
Euphorbia and cactus share a lot of characteristics, which is the outcome of convergent evolution. Euphorbias and cacti are two examples of stem succulents, a class of plants that store water in the stem tissues of their plants. These plants are able to endure in extremely arid environments due to this adaptability and their lack of leaves.
A cactus, is Euphorbia Lactea?
Mottled spurge, also known as Euphorbia lactea, is a tiny tree or shrub that looks like a cactus and is deciduous, prickly, and typically leafless. Although it may reach a height of 15 feet, it’s usually kept as a 1 to 2 foot houseplant. The plant has green branches with white lines running through them and prickly stems. It can occasionally develop in a crested (cristate) form. In the summer, little leaves do develop, but they fall off rapidly, leaving the plant leafless. The plant does not endure freezing and rarely flowers. In addition, the stems have four angles and paired black stem thorns. The plant will leak a poisonous, milky latex if it is injured.
Mottled spurge grows best in full sun to partial shade, well-drained soils. Although you can let soils dry up after each watering, it cannot tolerate moist soil. Water regularly in the summer to keep soils from completely drying out and less frequently in the winter. The plant is frost-intolerant but winter-hardy to zone 10. Potted plants can be grown year-round as indoor houseplants or overwintered indoors.
The plant has adapted to arid climates and can be found all over the world in tropical and subtropical locations. It has been reported to escape cultivation and grow into substantial thickets. It is commonly farmed in the West Indies, Florida, and other tropical places all over the world in addition to growing naturally in tropical Asia.
Plant diseases, pests, and other issues:
There are no known major insect or disease issues. There could be nematodes, mealybugs, and aphids. Look out for mites. Keep your distance from any harmful plant sap.