When you read the word "pasture," the image that likely comes to mind is of undulating green hills, or maybe a flat green field.

Kale gets better with frost, which causes it to turn sweeter.

And now this sweet, dark, leafy green, which some call a super food because it is packed with nutrients, will be available for sale this winter at Mermaid Farm and Dairy in Chilmark on Middle Road.

The farm grows two varieties of kale, oleracea and napus, for two different growing seasons. Oleracea is a curly variety bred in southern Europe, while napus is a hardy, flat-leafed variety better suited to withstanding winter temperatures.