Different types of green beans
There really is no
difference between pole beans and bush beans, other than how they grow.
Obviously pole beans are those which climb as they grow and bush beans
are low growing bushes. One may fit into your garden architecture better
than the other or you may prefer the look of one over another.
Bean Seed Varieties
Some popular pole beans are Kentucky Blue, Kentucky Wonder and Blue Lake.
Do Different Color Green Beans Taste Differently?
Green beans come in some lovely colors that you'd never imagine. How about purple? Yes, that's right, purple. One purple variety of green bean is called Purple Podded, and it's a pole bean. There are also yellow green beans . Beurre de Rocquencourt are a variety of French Heirloom beans also known as yellow or wax beans. They can be cooked in the same way. Generally purple green beans and yellow green beans are identical in taste and texture to green green beans.
Cooking Tips for Purple Green Beans
One thing I'd like to add here are some cooking tips for purple green beans. A lot of home cooks take them home, boil them up and are very disappointed when the color bleeds out and they're left with green green beans.
Once heat is applied to purple
green beans they will loose their color. Most chef's agree the best way
to cook them and have them retain their best color is to "butter
baste" them. If you want to blanch them cookbook author Harold McGee
book suggests you add a pinch of baking soda to the cooking water to help
retain their color.