100 San Marzano Tomato Heirloom Vegetable Seeds

San Marzano Indeterminate Tomato, also known as San Marzano Tomato seeds for planting, is a traditional Italian paste tomato prized for dense, bright red plum fruit and a long, productive season. Vine plant of San Marzano vegetable seeds for planting outdoors is indeterminate, vining grower that reaches about 36–96 in tall and 18–36 in wide, so sturdy cages or trellises keep vines upright as clusters set. Expect 2–3 in fruit averaging 5–6 oz, with thick walls, very few paste tomato seeds, and little juice - exactly what you want for rich purees, sauces, and soups. High sugar and pectin content deliver a sweet, robust flavor of tomatoes plants fruits that also works for fresh eating. This tomato seed cultivar is closely associated with Italy’s Valle del Sarno region and has been commercially grown since the early 20th century. Grow tomatoes seeds for planting in full sun with well-draining, moisture-retentive sandy loam. San Marzano tomato paste performs best in warm conditions around 70–85°F; protect plants if temperatures may drop below 45°F. Keep watering consistent and avoid splashing soil onto foliage to help limit disease pressure. Pruning lower leaves of san marzano tomato plants live and removing suckers can improve airflow, and crop rotation supports healthier soil season after season. These italian heirloom tomato seeds are open-pollinated and non GMO seeds, supplied as easy-to-store seed packets for home gardeners. Harvest begins about 85 days from transplant, then continues until frost - often up to four months with steady picking. Use ripe fruit for tomato paste, canning, marinara, and soups, or slice fresh for summer plates. Semillas de tomate for growers who want classic tomato San Marzano flavor with sauce-ready texture.