- Widely known as River's Early Prolific or Early Rivers after the Hertfordshire nusery where it was raised, as the name suggests, early and prolific!
- One of the easier gages to grow, and unlike most gages is useful for cooking too.
- Empress, also known as Blue Imperatrice, is a very late season European plum with a notably sweet flavor.
- An early-season culinary plum with a good flavor.
- A well-flavoured red-purple plum, similar to Victoria.