Tiren is an exclusive early San Marzano type hybrid tomato that delivers the classic elongated paste tomato form in just 75 days from transplant. This F1 hybrid thrives across hardiness zones 3 through 9, making it accessible to gardeners in nearly every region. Its indeterminate growth habit means you'll enjoy continuous production throughout the season, while its resistance to both Fusarium Wilt and Verticillium Wilt keeps your plants healthy and productive.
—
Moderate
3-9
?in H x ?in W
—
High
Hover over chart points for details
Tiren combines the prized San Marzano profile with the speed and reliability of hybrid vigor, reaching harvest in 75 days. Early maturity paired with disease resistance to two of tomato's most serious wilts gives you a genuine advantage in the garden. This variety responds well to balanced fertilization and careful nitrogen management, rewarding attentive growers with sustained yields rather than leggy overgrowth.
As a San Marzano type, Tiren excels in sauce and paste production where its elongated form and dense flesh are prized. Home canners and preservers will appreciate its suitability for processing into tomato sauce, paste, and concentrated preparations. The variety's early maturity and disease resistance make it reliable for gardeners who preserve their harvest before season's end.
No timeline data available yet for this variety.
Sow seeds 1/4 inch deep in 20-row flats with 20 seeds per row, or in 200-cell trays with one seed per cell, lightly covering them. Keep the seed-starting mix at 75 to 85°F with moderate moisture; seeds typically germinate within 5 to 7 days. At the first true leaf stage, pot seedlings up to 50-cell trays or 4-inch pots depending on your expected transplant timing. Grow transplants at a constant 60 to 70°F and provide complete fertilizer until hardening off. Sow about 5 to 6 weeks before your planned transplant date to avoid starting too early, which can result in leggy, root-bound, or flowering transplants that stunt growth and reduce early production.
Transplant outdoors after hardening off once nighttime temperatures consistently remain above frost level. Space transplants 24 inches apart in rows spaced 48 inches apart. Ensure soil has warmed appropriately and that transplants are healthy, not stressed or already flowering.
Harvest fruit when it reaches full color and slight give to gentle pressure. For paste tomatoes like Tiren, wait until fruits are fully ripe for the best flavor and processing results. Pick regularly to encourage continued production throughout the indeterminate season.
As an indeterminate variety, Tiren will grow continuously throughout the season and benefits from strategic pruning. Use the basket-weave trellising method, pounding 5 to 6-foot stakes every 2 to 3 plants and using heavier t-posts intermittently at ends of beds. Once plants outgrow a manageable height for easy harvest, consider short stake extensions or selective pruning to keep fruit accessible and maintain air circulation around the canopy.
Enter your ZIP code to see a personalized growing calendar for this plant.
“Tiren represents Johnny's Selected Seeds' exclusive development of an early San Marzano type, bringing the heritage Italian paste tomato into modern F1 hybrid form. By crossing parent lines for vigor and speed, breeders created a tomato that captures the San Marzano's distinctive elongated shape while cutting maturity time and adding resistance to major soil-borne diseases that have historically plagued the original heirloom.”