Until I am able to be out in the garden again, it is nice to think about some of the plants I can only see through the window for the present. And there are several of them that continue the garden alphabet with the letter K. Kale is one plant that is good for the vegetable and the flower garden. Ornamental varieties grow in the same way as the edible vegetable type through the summer months, and then start to color up in early fall in tones of red, pink and white with the entire head resembling a large flower. It will last until the first hard frost and fill in for some of the early perennials who have given up for the winter.   If you do not want to take up space with the cabbage-like plants through the summer, you can purchase plants that are ready to color up at this time of year. To use simply for kitchen use, you will find kale easy to grow, and it is one of the most nutritious vegetables known.