San Marzano Tomato Seeds – Heirloom Garden Variety

San Marzano Tomato Seeds are one of the most popular heirloom tomato varieties grown in the USA. Known for their elongated shape, firm texture, and rich, sweet flavor, these tomatoes are a top choice for gardeners and home growers. Whether planted in containers, raised beds, or garden soil, San Marzano plants are productive, reliable, and well-suited for many growing zones.

Growers choose San Marzano Tomato Seeds for their consistent germination, excellent growth, and versatility in the kitchen. Perfect for sauces, fresh use, or preserving, these seeds are easy to cultivate with the right care and planting practices.

Features

• Premium quality heirloom tomato seeds
• Non-GMO and open-pollinated
• Excellent germination rates for reliable growth
• Heavy-yielding plants producing elongated fruits
• Suitable for home gardens, containers, and raised beds
• Adaptable to a wide range of US climates

Specifications

• Common Name (US): Tomato (San Marzano variety)
• Seed Type: Heirloom, open-pollinated, non-GMO
• Planting Season: Spring and Summer (after frost)
• USDA Hardiness Zones: 3–11 (best performance in zones 5–10)
• Sunlight Requirements: Full sun (6–8 hours per day)
• Soil Type: Well-drained, fertile loamy soil, pH 6.0–6.8
• Sowing Method: Start seeds indoors 6–8 weeks before last frost or sow outdoors after frost danger passes
• Germination Time: 7–14 days at 70–85°F
• Days to Maturity: 75–85 days from transplanting
• Spacing: 18–24 inches between plants, 3 feet between rows
• Plant Height: 4–6 feet, staking or caging recommended
• Watering Needs: Regular deep watering, avoid overhead watering
• Harvest Season: Mid to late summer, continues into early fall depending on region
• Yield: High productivity, elongated red fruits with firm flesh
• Storage Use: Best fresh, canned, or for sauces and pastes