Opalka Heirloom Tomato 20 Seeds Moon Gardens Simply Grown Beautifully Opalka Heirloom Tomato 20 seeds An Heirloom Tomato from Poland, is a popular paste variety, is red 3" x 5", has a wonderful fresh taste with few seeds and grows vigorously on vines. Indeterminate Likes Full Sun Germination tips: 75 - 85 degrees Matures in 85 days from germination Can be seeded in seedling trays and transplanted to ground when warm or grown directly in ground when frost is no more.