Indigo is a small-fruited Tomato. Acidic. Indeterminate. Sweet and flavorful, vibrant fruit. Purple coloring on portion of fruit that is exposed to light, while shaded part turns deep red at maturity. The fruit has a naturally occuring, disease-fighting anti-oxidant called anthocyanins. 75-80 days. Average fruit size: 1-2 oz in clusters. Disease Tolerance: Early Blight, Late Blight.