Organic Italian tomato ‘San Marzano’

Organic Italian Tomato San Marzano (Solanum lycopersicum) is an indeterminate heirloom annual variety known for its long, red, meaty, low-moisture fruits. In the vegetable garden, it offers a strong vertical presence with vigorous plants reaching 1.8 to 2.1 m (6 to 7 ft) and generous clusters that ripen progressively from July until the first frosts. Its dense flesh, low water content, and rich flavor make it a classic choice for homemade sauces, passata, preserves, stews, and Mediterranean cooking. It is also excellent fresh, roasted, or dried, with harvests usually beginning about 80 days after transplanting.

Organic Italian Tomato San Marzano should be sown indoors from March to April, about 0.5 cm (1/4 in) deep, at a steady temperature of 21 to 27C (70 to 81F). Germination usually takes 7 to 14 days when seedlings receive proper warmth and light. After the last frosts, hardened-off plants can be transplanted into full sun, in rich, fertile, slightly acidic to neutral, well-drained soil with good organic matter content. It also grows very well in a large, deep container on a sunny patio. A sturdy stake or cage, regular watering, organic mulch, and balanced potassium-rich fertilization support strong production.

In the edible garden, Organic Italian Tomato San Marzano is ideal for family vegetable gardens, gourmet gardens, and edible landscapes focused on practical kitchen harvests. Its vertical habit helps optimize space, while its abundant fruits easily fill baskets for sauces, preserves, and summer meals. Basil, chives, and parsley are excellent companion plants, while rotation with other nightshades helps reduce certain crop issues. Its yellow flowers attract bees and other pollinating insects, supporting good fruiting and beneficial biodiversity in the vegetable garden.