Semi-Determinate. Rio Grande is a petite slicer tomato that’s perfect for tossing into salads. Don’t let its small size fool you—this variety delivers big on flavor with a bold balance of acidity and sweetness. One of the most flavorful Roma-type tomatoes, it’s ideal for fresh eating and cooking alike. The compact, productive plants yield heavily throughout the season, making it a great choice for gardeners looking for continuous harvests in smaller spaces.