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Phosphorous toxicity. I have seen posts on social media of Crown of Thorns that are sick because they are over fed and most of the time, the owner does not even know it. Also, I have been asked too many times by my customers of what is wrong with their Crown of Thorns. On this post I will tackle Phosphorous toxicity and I will address the other nutrient toxicities in my next posts. Many gardeners seem to believe that fertilizers that contain high amount of phosphorous will make their plant bloom like crazy. Examples of high Phosphorous fertilizers are 10-30-20,...

Euphorbia milii, with the common names “Crown of Thorns”, “Christ Plant” or “Christ Thorns” hails from Madagascar, a large island situated in the western Indian Ocean, about 225 miles off the east coast of South Africa. The Latin name, Euphorbia, was coined by King Juba II of Numidia (present day Algeria) after he was treated with a certain potent medicinal plant. He named this plant after his Greek doctor Euphorbus who obtained the plant from Morocco in the Atlas Mountains. King Juba II reigned from between 29 BC-27 BC till his death in 23 AD. However it was only in 1753 when Euphorbia was officially established as the botanical name...