Euphorbia
The Euphorbia family is a genus with 2000 species, however, they are all different from each other from being perennial trees, to everlasting shrubs and herbs. These species are from various regions of the world - Africa, South America and Madagascar and even from the Canary Islands.
They also vary in appearance from the architectural Rubra to the coral leaf of Cristata and the stunning thorny Enopla. The most common trait is the white sap they have and euphorbia has since ancient times been a prominent medicinal ingredient.
The indoor plants are also represented by different types, but their care is usually quite similar as they are not a very demanding houseplant. Over half of the species are succulents which makes them popular. They range from looking like cacti with thorns, to Poinsettias that are also in the same genus, hence, it “bleeds” white.
Care
For your Euphorbia we recommend you place them in a warm bright window with some morning or evening sun. As some may grow leaves it is vital for the longevity of the plant to have plenty of bright light, but full sun may scorch the leaves.
Being succulents it is important that you do not overwater them. Let the soil dry out completely between watering, but avoid the plant to be bone dry over a longer time. This can range from once a fortnight over the warmer months to once a month in winter. Keep them at normal room temperature 18-24°C and avoid cold draughts.
The sap is poisonous and known to be an irritant which classifies this plant as toxic and not suitable around pets or children. Avoid getting this into your eyes or mouth and handle the plant with care when you are repotting it. Wash off immediately if in contact with skin.
Problems
Soft stem - Overwatering
Fading colour - Low light or too much sun
Leaves crisping - Sunburn or underwatered