Anemones reproduce in a variety of ways. They can reproduce asexually, budding off what are essentially identical twins from a single specimen. This can result in the formation of a large colony of identical individuals such as can be observed in the local intertidal with the aggregating anemone. They can also reproduce sexually by broadcast spawning, where fertilization takes place in the water. The resulting larvae then swim around in the plankton until they find a suitable place to settle, at which time they metamorphose into a young anemone. An unusual mode of reproduction occurs with the local brooding anemone, Epiactis. In this species, fertilization takes place internally, and instead of producing free swimming larvae, once fully formed, the larvae crawl out of the parent's mouth, down the column and sink into small depressions at the base of the parent's foot where they metamorphose into a young anemone. They remain in close association with parent until they are about three months old, at which time they glide away to live on their own.

Sea anemones reproduce two ways.
Method 1: Asexually.
The anemone will bud a new anemone that has the exact same DNA.
Method 2: Sexually.
Anemones will release sperm or eggs into the water. Sometimes the sperm and eggs meet and then a new anemone will begin to form. It can take a couple weeks before the anemone fully develops and can settle onto rocks.
Sexual reproduction creates offspring with different DNA than the parents.