Flowering Kale that Actually Flowered

We stopped to investigate a riot of yellow blooms in window boxes along Columbus Avenue several weeks ago only to discover it was a planting we had done for a client last fall. None of us had even seen a picture of kale actually flowering let alone in real life. It's a great plant for fall color with its rich green, red, white and lavender leaves. It thrives in cool weather yet rarely survives the winter without looking raggedy if it doesn't completely crater. We'd have replaced this weeks ago except our client has moved and the space is currently unoccupied. Passers-by never realized what an uncommon show they were enjoying.