Harley Seeds: Italian San Marzano Paste Tomato Seeds - Heirloom, Non-GMO, Indeterminate

Harley Seeds San Marzano: A Time‑Honored Tomato for Sauce and Salads

Harley Seeds presents 30 Italian San Marzano paste tomato seeds. This heirloom, open-pollinated line is non-GMO and grown in the USA. Celebrated in Campania, Italy for traditional tomato sauces, these plants deliver a long season and dependable fruit production. The fruits are blocky and firm with a deep red color from skin to flesh, qualities that home cooks and gardeners prize for sauces, bruschetta, and fresh toppings. The vines are indeterminate, offering a steady stream of fruit through a warm growing season, with uniform fruit size that makes planning easier for larger plots. While renowned among gourmet chefs, this variety also suits ambitious backyard gardens where consistent harvests matter.

The San Marzano name carries a classic tomato character, and this Harley Seeds selection brings that heritage into a contemporary, high-yielding package. The plants tolerate common tomato challenges and show particular suitability for warmer climates, helping you extend your growing window where you garden.

Key benefits at a glance

• Open-pollinated, non‑GMO heritage with indeterminate growth and a long fruiting season
• Deep red, blocky fruits with firm texture ideal for sauces, bruschetta, and salads
• High yield potential and uniform fruiting for consistent harvests
• Adaptable to warmer climates with tolerance to Verticillium wilt (V) and Fusarium wilt (FW)

Growing guidance to set you up for success

• Germination thrives at soil temperatures around 70–75°F (21–24°C), typically within 7–14 days
• Sow seeds 8 weeks before your planned transplant date; transplant 1–2 weeks after the last frost
• Keep soil warm and evenly moist; avoid overly cool nights or excessively hot conditions that slow emergence
• Plant depth about 1/4 inch and space plants 24 inches apart to support airflow and growth
• Overwatering can lead to fungal issues; water when the soil surface begins to dry

Care tips and lifestyle uses

Hardening off is recommended for a smooth transition from indoors to sun exposure. Once established, these vines tend to produce a reliable supply of 3–4 oz fruits, making them well suited for sauces, roasted dishes, and fresh preparations. Home cooks who value classic tomato flavor may notice a robust profile that shines in homemade sauces and flavor-forward plates.

What you’ll get

Each batch from Harley Seeds is prepared to support a garden plan, with strong germination potential and a harvest that aligns with typical warmth-loving varieties. Results vary with climate and care, but many gardeners find this seed line a dependable choice for a sauce-forward tomato repertoire.