Heirloom Non-GMO Italian San Marzano Paste Tomato Seeds

The Italian San Marzano Paste Tomato Seeds are a prized heirloom variety that are non-GMO and open-pollinated. These indeterminate plants are highly productive, yielding delicious 3-4 oz. tomatoes in just 80 days.

When planting these seeds, it is crucial to keep the soil consistently moist, ensuring the seeds do not dry out between waterings. The optimal soil temperature for germination is 70-75°F. The seeds should be planted at a depth of 1/4 inch, preferably in small, 4-inch or smaller, containers rather than directly in the ground, as in-ground germination is not recommended. A well-drained, standard potting mix should be used.

To achieve the best results, start the seeds in containers approximately 8 weeks before the planned set-out date. The plants should then be transplanted to the garden 1-2 weeks after the expected date of the last frost. It is essential to maintain the soil temperature between 70-85°F, as cooler soils below 60-65°F, even just at night, can significantly delay or inhibit germination. Conversely, excessively warm soils, exceeding 90°F, can also inhibit germination and provide ideal conditions for seed rot.

Overwatering can lead to fungal growth, which in turn can cause seed rot. Excess water can also bury the seeds deep in the soil, preventing them from breaking through the surface. To avoid these issues, water the soil only when the surface begins to dry.

Multiple seeds can be planted in a single starter container, but they should be thinned once the seedlings appear, leaving only a single plant. The seeds do not require light for germination, but a light source should be provided for the seedlings once they emerge from the soil.

By following these detailed instructions, gardeners can ensure the successful cultivation of the Italian San Marzano Paste Tomato. These heirloom, non-GMO seeds produce an abundant, delicious harvest of 3-4 oz. tomatoes in just 80 days, making them a valuable addition to any home garden.

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