Seeds › Tomato › San Marzano

San Marzano

Tomato · Paste

Heirloom

Solanum lycopersicum

★ 4.01 review · 4 sources

Solanaceae (Nightshade family) · Genus: Solanum

About

An Italian favorite beloved for its thick, meaty flesh. Perfect for sauces, canning and drying. Indeterminate.

Characteristics

Color

Red

Growth Habit

Indeterminate

About the Plant

Life Cycle

Annual

❄

Hardiness

Warm-Season/Tender

☀

Exposure

Full Sun

💧

Moisture

Keep Moist

🌍

Origin

Italy

🌱

Germination

7–14 days

at 70–75 °F

⏳

Days to Maturity

75–90 days

Fruit Size

3.5 in

⚖

Fruit Weight

4 oz

How to Plant

🏠

Start Indoors

4-6 Weeks Before Last Frost

Transplant

0-2 Weeks After Last Frost

Planting Depth

0.25–0.5 in

Seed Spacing

30–48 in

Row Spacing

30–48 in

Thin To

24 in

🌡

Optimal Soil Temp

60–85 °F

🌡

Soil Temp

70–75 °F

🌡

Air Temp

32–90 °F

When to Plant in Your Area

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Planting and Care Instructions

START INDOORS in a warm, well-lighted area 6-8 weeks before planting outdoors. Sow seeds 1/4" deep into individual containers filled with seed starting formula. Keep moist. Seedlings emerge in 7-10 days at 70-75°F. Before transplanting, move to a sheltered area outside for a week.