Brussels Sprout Plants - Kalette Flower Sprout Mix Unique flower-type sprouts! The Kalette Flower Sprout Mix will produce winter hardy brussel sprout plants for you to enjoy from October through to March! Just in time for the festive season. The Kalette Flower sprout is an unusual looking vegetable with a divine taste. An outstanding sweet flavour, combining the complex taste of a sprout with the mild, sweet nutty taste of kale. These brussel sprout plants are the perfect addition to beds and borders or raised beds in any home grown vegetable garden or on the allotment.