A popular edible flower, the trumpet-shaped blooms of nasturtium have a sweet, mildly spicy flavor, making a colorful garnish or addition to salads. The round leaves are beautiful by themselves. The peppery-tasting foliage is also edible. Nasturtium is an excellent choice for hanging baskets or pots. These beautiful almost scarlet trumpet flowers are stunning in a vase and bees love to tuck into the center and sleep at night.