15 Vegetable Seeds Kale Lettuce Grow Kale in your garden and add this handsome lush green foliage to your palette. You will be delighted to include Kale in your vegetable garden as it looks the most attractive of all the other vegetables. Romaine Lettuce or long Lettuce in general is packed with nutrition. They grow straight upright with light green color and white texture. Zucchini likes well-drained, fertile soil mixed with lots of compost. It requires consistently moistened soi.