How to Get a Crown-of-Thorns to Bloom


The plant that is often known as crown of thorns (Euphorbia milii) is really a thorny, succulent shrub that is native to Madagascar. It is possible to cultivate this evergreen plant either outdoors in the plant hardiness zones 9 to 11 as recommended by the United States Department of Agriculture (USDA), or inside in other regions of the world. The Christ plant is another name for the crown of thorns that may be seen in certain stores.

Crown of Thorns Identification

The crown of thorns plant, when grown in its natural environment, may grow to a height of between 5 and 6 feet tall. According to the Missouri Botanical Garden, on the other hand, this plant often reaches its maximum height of around three feet in Florida, which is one of the few areas in the United States where it can be cultivated outside year-round. Florida is one of the few states in the United States. When cultivated as a houseplant inside, it attains an even more compact form. The blossoms of the plant known as crown of thorns are not very noticeable. On the other hand, the bracts that resemble petals and may be either red or yellow draw a lot of attention.

The popular name for this succulent plant alludes to the fact that it is coated with thorns. In point of fact, the name derives from the myth that this plant was the source of the crown of thorns that Jesus, in accordance with the teachings of Christianity, was compelled to wear at his crucifixion. This myth inspired the name of the plant. When working with this plant, it is essential to always protect your hands by donning gloves, and not simply because of the thorns. In addition, several species of Euphorbia produce a poisonous sap that may cause rashes on the skin.

Crown of Thorns Blooming

The Crown of Thorns plant only produces flowers at certain times of the year. It is possible for it to produce blooms constantly throughout the year in tropical environments, with the spring and summer months being the peak flowering seasons. Winter and spring are the seasons in which this plant, which is quite popular in Florida, will produce the most flowers. According to the Missouri Botanical Garden, the blooming season for houseplants extends from late winter into the autumn.

Full daylight, which is defined as receiving six hours of sunshine every day, is ideal for the growth and blooming of a crown of thorns plant. These plants, however, need nighttime darkness in order to be stimulated into flowering, therefore an excessive amount of light at night may be damaging to them. This is according to the Wisconsin Horticulture Division of Extension.

Since the crown of thorns plant is a succulent, it can withstand quite a deal of heat and dry circumstances, which contributes to the fact that it requires very little care. According to the Missouri Botanical Garden, however, the plant may produce more blooms if it receives constant precipitation that is just mild in intensity. This kind of irrigation ought to also aid in reducing the amount of leaf fall.

Crown of Thorns Care

There may not be many blossoms on a crown of thorns plant if it has received an excessive amount of fertiliser. In most cases, this will result in more leaves but fewer blossoms, as stated by the Wisconsin Horticulture Division of Extension. It is sufficient to give this plant a very little dose of a balanced fertiliser once in the spring and once again in the summer.

The plant known as crown of thorns is vulnerable to frost and freezes, and it will sustain harm if it is subjected to temperatures that fall below 35 degrees Fahrenheit. If you reside in an area that has chilly winters and cultivate a crown of thorns as an indoor plant, you may choose to relocate it outside during the warm summer months. However, you should do it in a gradual manner to prevent the plant from being burnt.

A crown of thorns plant grown outside may tolerate some rain, but if there is an abundance of moisture, it may develop fungal illnesses. In the event that these illnesses do occur, it is essential to transfer all of the plant tissue that is afflicted in order to prevent the infections from spreading further.

Fertilizer with a healthy balance