Tomato San Marzano Seeds – Heirloom Classic Italian Paste Standard

Ontario Grown
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Contains about 30 seeds

$2.20

SKU: GS-8497-TOM-DT

Free shipping on orders over $50

Organicly grown

Non GMO

Description

Tomato 'San Marzano' (Solanum lycopersicum) is the quintessential open-pollinated Italian heirloom plum tomato, celebrated globally as the ultimate paste, sauce, and canning variety. Originating near Naples, Italy, this indeterminate vine produces heavy clusters of elongated, cylindrical fruits 3 to 4 inches long with a distinct pointed tip. The deep red fruits feature thick flesh, minimal seed cavities, thin skins, and exceptionally low acidity, producing a rich, sweet, concentrated tomato flavor when cooked. Highly prized by chefs and home preservers, San Marzano is an essential centerpiece for authentic marinara, pizza sauces, and whole-canned harvests.

Specifications

Plant Name: Tomato 'San Marzano' (Solanum lycopersicum)
Cultivar Type: Heirloom, Open-Pollinated (Classic Italian Strain)
Plant Class: Warm-Season Annual Vegetable / Nightshade Family
Color: Deep vibrant red skin, solid red dense interior flesh
Plant Characteristics: Indeterminate climbing vine habit (60–72 inches tall / 150–180 cm), elongated cylindrical fruits (3–4 inches long / 8–10 cm), thick walls, low moisture content, high soluble solids
Suitable Space: Vegetable garden rows, raised beds, high-clearance cages, home greenhouse plots
Season: Midsummer through Autumn Harvest (Warm Season, ~75–80 Days to Maturity from Transplant)
Best Time for Sowing (Zone 6b): Start seeds indoors late March to early April 6 to 8 weeks before last spring frost (sow 0.25 inches deep with bottom heat 21–27°C / 70–80°F). Transplant outdoors late May once night temperatures remain above 10°C (50°F), soil warms completely. Space plants 24 to 36 inches apart.
Sunlight: Full Sun (6+ hours direct sunlight daily required)
Watering Needs: Moderate to High (requires consistent, even soil moisture to prevent blossom end rot; well-drained organic soil)
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What is included?

Contains about 30 seeds

Check out the growing specs for the specific organic heirloom seeds you bought.

Good to know

Exceptional dense texture with few seeds, low acidity, low moisture ideal for thick sauces, canning
Prolific indeterminate vines produce heavy fruit clusters continuously until autumn frosts
Outstanding traditional culinary quality for authentic Italian cooking, roasting, drying

Heavy indeterminate vine growth requires sturdy staking, tall cages, or trellis support
High susceptibility to blossom end rot if calcium levels or watering schedules fluctuate

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