Tomato 'San Marzano'

San Marzano tomatoes are prized for their meaty flesh, low seed count, and balanced acidity, which creates a thicker, more flavorful sauce compared to juicier slicing tomatoes. Their texture holds up exceptionally well during the long cooking times required for authentic Italian sauces and pizza toppings.

Because these vines can reach up to 8 feet tall, they require sturdy support like heavy-duty tomato cages, tall stakes, or a trellis system. Installing your support structure at the time of planting prevents damage to the root system later in the season.

You should plant these seedlings 4 to 5 inches deep, burying a portion of the stem. This encourages the plant to develop a more extensive root system along the buried stem, which leads to a stronger, more productive plant.

You can expect your first harvest in approximately 78 to 80 days after planting. Keep in mind that this timeline can vary slightly based on your local climate and the amount of direct sunlight the plants receive.

While they are technically indeterminate vines that prefer garden beds, you can grow them in large containers if you provide a very sturdy, tall support system and consistent watering. Ensure your container holds at least 5 to 10 gallons of soil to accommodate the root system.

Beyond providing sturdy support and full sun, these tomatoes require moderate, consistent watering to prevent issues like blossom end rot. Mulching around the base of the plant helps retain soil moisture and keeps the roots cool during the heat of summer.