Jewel Mix Nasturtiums are a well-known mix of single and double blooms. These bright, 2" flowers of red, pink, orange, and yellow are held above light green foliage. Mounded plant habit. Also known as garden nasturtium and Indian cress. Edible Flower: Use the flowers as garnishes, or stuff with soft cheese. The flowers can be minced and added to butters and the immature seed heads can be pickled. Nasturtiums are a popular choice for adding color to salad mix. Peppery-flavored foliage is also edible. Plant Height: 16" Harden off all plants before transplanting outdoors to garden or containers after nights are consistently in the 50s.