The family Euphorbiaceae includes the genus Euphorbia. It is commonly recognized that this genus is one of the most varied in the entire plant kingdom, with approximately 2000 species. Euphorbias can range in size from weed-like, low-growing “spurges to magnificent, cactus-like succulents that can reach heights of several meters. One well-known species in this genus is the Poinsetta (E. pulcherrima), a stunning and well-liked houseplant.
The distribution of Euphorbia includes tropical regions of Africa (where the majority of the succulent Euphorbias are found), Madagascar, and the Americas as well as colder, temperate regions of Asia and Europe. Australia and the Pacific Islands both have euphorbia species.
When cut open, the majority of euphorbia species release a milky latex sap. This functions as both a defense mechanism to stop animals from eating the plant and a natural wound-healing mechanism for the plant. If it comes into touch with skin, it can result in excruciating inflammation and a rash. If consumed, some species’ latex can be quite harmful to people. The toxicities of several species are listed in this helpful resource.
This toxin has a di- or tri-terpene ester chemical structure, depending on the species. The distinctive feature that sets all euphorbia species apart from cacti is their milky sap.
A business in Australia is presently investigating the use of E. peplus sap as a skin cancer treatment. According to the notion, the sap kills the cancerous skin cells and forms a scab that finally falls off.
Due to the diversity of the genus Euphorbia, numerous reproductive strategies are seen. Monoecious plants have blooms on the same plant that are both male and female. Some Euphorbias have male and female blooms on separate plants, or they are dioecious.
This genus was given that name by Carolus Linnaeus in honor of the Greek physician Euphorbus, who is credited with discovering a use for Euphorbia as a medicine (most likely Resin Spurge).
This succulent is also a euphorbia. Take note of how the spines protrude in pairs, similar to the species seen to the right.
This Euphorbia has thick, protective skin and spines. As opposed to a cactus, the spines protrude in pairs.
Is euphorbia a seasonal or perennial plant?
Euphorbias are resilient, trouble-free perennial plants that are simple to grow. Euphorbias are well known for their distinctive flowers and brilliantly colored leaves, and they make wonderful additions to borders, rock gardens, meadows, and more.
Which Euphorbia is best?
The 6 Best Spurge Varieties to Plant as Your Secret Weapon
- Characias E. Subsp.
- Myrsinites Euphorbia Above: On a bed of gravel, Euphorbia myrsinites creeps along.
- Eupatorium rigidum
- Martinii x Euphorbia
- Various Euphorbia Amygdaloides
- Portuguese Velvet Euphorbia characias
Is it difficult to raise euphorbia?
Euphorbias require relatively little maintenance. These plants need some care to get started, but once they do, they are remarkably self-sufficient. In actuality, more people perish from over care, particularly overwatering, than from neglect. However, they are tough and make excellent starting plants.
What is Euphorbia’s common name?
The spurge family includes the enormous and diversified genus of flowering plants known as Euphorbia, sometimes known as spurge (Euphorbiaceae). In common English, the term “Euphorbia” is occasionally used to refer to all members of the family Euphorbiaceae as a whole (in honor of the original genus). [2] Some euphorbias, like poinsettias around Christmas, are commonly sold commercially. Some, like the crown of thorns plant, are frequently grown as ornamentals or are collected and highly valued for the aesthetic appeal of their distinctive floral structures (Euphorbia milii). Because euphorbias from Southern Africa and Madagascar’s deserts have developed morphological traits and shapes resembling cacti from North and South America, they are frequently mistakenly referred to as cacti. [3] Because they can withstand heat and drought and have attractive or striking overall forms, some plants are employed as ornamentals in landscaping. [4] [5]
The euphorbia genus includes small annual plants and enormous, long-lived trees.
The genus is one of the largest genera of flowering plants, with over[4] or over 2,000 members[6].
[7]
Along with Rumex and Senecio, it also possesses one of the widest ranges of chromosomal counts.
[7]The type species for the genus Euphorbia is Euphorbia antiquorum.
[9] Carl Linnaeus published the first description of it in Species Plantarum in 1753.
The plants all have strange and distinctive floral structures in addition to a deadly, milky, white, latex-like sap.
[4] The genus can be characterized by the traits of the DNA sequences of its members or by the morphology of the flower heads. The flower head appears to be a single flower when seen as a whole (a pseudanthium). It has a special type of bloom, called a cyathium, in which each flower in the head is stripped down to the minimal minimum required for sexual reproduction. [4] Each flower is either male or female, with the male flowers consisting only of the stamen and the female flowers solely of the pistil. [4] These flowers lack petals, sepals, and other components that are common to flowers in other plant species. [4] Supporting structures for the flower head and other structures below have evolved to draw pollinators through nectar as well as through patterns and colors that mimic the function of petals and other flower components in other flowers. It is the only plant genus that possesses all three types of photosynthesis—CAM, C3, and C4—all at once. [4]
When should Euphorbia be planted?
Growing and Planting Euphorbia In a sunny spot with exceptionally well-drained soil, plant in the spring or the fall. Plant bushes in the spring and shield them from chilly winds until they are established. Even though most species prefer full sun, evergreens may tolerate a little light shade. The taller varieties make good border plants.
Are euphorbias contagious?
The ideal plant for growing beneath large trees is Euphorbia amygdaloides var. robbiae, one of the few species that grows in poor, dry soil in shadow. It grows through subterranean runners and finally forms a low carpet that smothers weeds. From spring to early summer, it produces erect spikes of lime green blooms in contrast to the dark glossy leaves. It serves as a good evergreen foil all year long for other shade-loving plants. It has received The Royal Horticultural Society’s esteemed Award of Garden Merit (AGM).
Grow Euphorbia amygdaloides var. robbiae in partially to completely shaded, well-drained soil. Trim back fading flower stems in the fall. Every spring, as part of routine border maintenance, remove undesirable seedlings.
Wear gloves whenever handling euphorbias. The creamy sap irritates the skin.
Do you need to trim the euphorbia?
Euphorbias are a lovely addition to any garden since they add color in the spring and summer and have attractively shaped foliage. They also have vivid, colorful bracts.
Some evergreen euphorbias just require their faded blooms to be trimmed back once they have finished flowering. Others have biennial stems that must be trimmed to the ground after flowering, like several Euphorbia charcacia kinds. Fall is the time to trim down deciduous plants to the ground.
Wear gloves when handling euphorbias because they all have a thick, milky sap that can irritate the skin and eyes.
Does euphorbia require direct sunlight?
In general, euphorbias need a sunny location and rich, well-drained soil. Light types, meanwhile, can tolerate some shade and do well as ground cover around shrubs and trees.
How to plant euphorbias
Dig a deep hole when planting euphorbias that have been cultivated in pots and fill it with compost or leaf mould. Euphorbia should be planted firmly, then it should be watered well and mulched to keep moisture in and weeds out.
Here, Monty Don proposes two exceptional euphorbia species and provides planting instructions. Additionally, he offers advice on how to grow euphorbias from cuttings.
How to care for euphorbias
As long as the growing environment is favorable, euphorbias don’t need feeding or special care. After the blooms have faded, blooming stems should be pruned. However, gloves must always be used when working with euphorbias because their milky sap is hazardous if consumed and irritates the skin and eyes.
How to propagate euphorbias
Euphorbias can be grown by taking springtime cuttings. Wear gloves to protect your hands from the sap.
By collecting cuttings of Euphorbia characias subsp. wulfenii in the spring, you can learn how simple and gratifying euphorbia propagation is. Monty Don offers advice on how to maintain the cuttings’ viability, plant them, and shield your hands from the irritating sap:
How quickly does Euphorbia expand?
The heavier stems have a tendency to point in the direction of the light as they grow. To stop the container from leaning, rotate it.
The shedding of leaves is typical. In a few months, fresh leaves will emerge at the top of the stem.
I can get up to 30 feet tall in nature. I can grow quickly indoors in a container and reach a height of 5-8 feet. From the base, fresh, light-green shoots will emerge.
You may have overwatered if you notice rotting at the plant’s base or notice that the stems are no longer spongey. By removing the top treatment and allowing the soil to breathe, you might attempt to dry it out. If the stem is still too wet, you can cut it with a fresh corrugated knife and transplant it in fresh, drier soil.
What Euphorbia species are invasive?
Northern California is home to isolated occurrences of Euphorbia esula, which is displacing native plant species. Prairies, grasslands, and pine savannahs are just a few of the vegetation types it can invade and take over.
Can Euphorbia be grown outdoors?
A genus of flowering plants in the spurge family is called Euphorbia (Euphorbiaceae). One of the biggest genera of flowering plants, Euphorbia contains approximately 2,000 different species, from diminutive annuals to enormous, long-lived perennial trees to deciduous shrubs. Some of the most recognizable euphorbias are poinsettia plants.
Plants native to Euphorbia are tough, hardy, and simple to cultivate in a variety of hardiness zones. Euphorbia plants are wonderful complements to flower beds and rock gardens because of their colorful leaves and distinctive flower structures called cyathiums. As long as they receive the proper amount of light, euphorbias thrive as both indoor and outdoor plants. The majority of them hibernate during the winter and bloom in the late spring and early summer.