San Marzano (Indeterminate), Heirloom Tomato Seeds

San Marzano (Indeterminate), Heirloom Tomato Seeds — The Legendary Paste Tomato, All Season Long

San Marzano is the paste tomato that Italian chefs have demanded for generations — and this indeterminate strain delivers that legendary flavor across a longer, more extended season. Compact yet prolific, it produces bright-red, slim, 3–4 inch fruits with a distinctive pointed end, heavy walls, crack resistance, and remarkably little juice or seeds. The flesh is thicker, the flavor stronger, sweeter, and less acidic than Roma — the reason San Marzano remains the benchmark for serious sauce makers worldwide.

Unlike the determinate strain, this indeterminate variety continues producing through the full season, giving you a steady supply of paste tomatoes for fresh sauce all summer long.

Why Grow San Marzano (Indeterminate)?

• The legendary Italian paste tomato — the benchmark for sauce makers worldwide
• 3–4 inch slim fruits — heavy walls, minimal juice and seeds, crack-resistant
• Richer, sweeter, less acidic than Roma — superior sauce flavor
• Indeterminate — continuous production for fresh sauce all season
• Compact and prolific — generous yields on manageable plants
• Open-pollinated heirloom — save seed year after year

Growing Notes

Start indoors 6–8 weeks before last frost. Sow seeds ¼ inch deep in fertile, well-draining soil. Transplant outdoors after all frost danger has passed, spacing plants 18–24 inches apart in full sun. Stake or cage vines. Water consistently. Harvest when fruits are fully red and firm.

Days to maturity: 82 days
Packet size: ~25+ seeds
Type: Heirloom, Open-Pollinated, Indeterminate
Fruit size: 3–4 inches
Spacing: 18–24 inches
Origin: Italy / USA-grown seeds
Sun: Full sun
USDA Zones: 3–12