Spurge is a hugely varied genus, ranging from succulent tropical plants to hardy shrubby species. They all have bract-like flowers, which are commonly green or yellow in most perennial garden varieties and all contain milky sap, which is a severe skin irritant and should be kept out of contact with the eyes.
There are more than 2000 species, which are found on every continent, except Antarctica. These are very diverse and grow in a wide range of habitats.
Most perennial garden varieties will grow in any reasonable soil type and situation. However, exact requirements and suitable locations do vary with the species.