Mendel grew and studied around 29,000 garden pea plants in a monastery’s garden, where he analyzed seven characteristics of the garden pea plants: flower color (purple or white), seed texture (wrinkle...Mendel grew and studied around 29,000 garden pea plants in a monastery’s garden, where he analyzed seven characteristics of the garden pea plants: flower color (purple or white), seed texture (wrinkled or round), seed color (yellow or green), stem length (long or short), pod color (yellow or green), pod texture (inflated or constricted), and flower position (axial or terminal).