Solanum lycopersicum ‘San Marzano’
Overview
Uses: Sauces, canning, paste production, roasting, home vegetable gardens, raised beds
Benefits: Elongated, thick-walled plum fruit with dense flesh and low seed count, balanced flavor ideal for cooking, steady production on vigorous indeterminate vines
USDA Hardiness Zones: Annual
Sun: Full Sun
Life Cycle: Annual
Growth Habit: Climbing, Upright — long vining stems require staking or caging.
Bloom Color: Yellow
Mature Height: 6–8 feet with support
Mature Width: 24–30 inches
Bloom Season: Summer to Early Fall
Growth Rate: Moderate
Summary
San Marzano is the gold standard of paste tomatoes, grown for rich sauces, slow simmers, and serious home kitchens. Its elongated, plum-shaped fruit delivers dense flesh and balanced acidity that holds its texture beautifully when cooked.
Fruits typically reach 4–6 inches long with thick walls and fewer seeds than many slicing varieties. The lower moisture content allows sauces to reduce efficiently, creating depth and consistency without extended cooking times.
As an indeterminate tomato, San Marzano continues producing throughout the season when properly supported, providing steady harvests from mid-summer until frost in full sun conditions.
Care
San Marzano Tomato Care
Plant in a location that receives at least 6–8 hours of direct sunlight daily for optimal flowering and fruit development.
Grow in rich, well-drained soil with consistent moisture. Water deeply and regularly, keeping soil evenly moist but never saturated.
Incorporate a balanced slow release fertilizer at planting time and again mid-season to support steady growth and fruit production.
Provide sturdy staking or caging early in the season. Supporting the vines improves airflow and helps keep fruit clean and off the soil surface.
Harvest when fruit turns fully red and feels firm with slight give when gently pressed.
Size
What Size is the San Marzano Tomato for Sale Online?
Plants ship in a greenhouse-grade grow pot and are actively growing at the time of shipment. Each plant is well-rooted and established for transplanting into garden beds or larger containers. If you have specific sizing questions, please contact us for additional details.
How Large Does San Marzano Tomato Grow?
When properly supported, vines can reach 6–8 feet tall and spread approximately 24–30 inches wide. Regular pruning and staking help manage size and improve airflow.
Additional Information
What are some common names for this plant?
Solanum lycopersicum ‘San Marzano’ is commonly known as San Marzano Tomato or San Marzano Paste Tomato.
Is San Marzano a determinate or indeterminate variety?
San Marzano is an indeterminate tomato, meaning it continues to grow and produce fruit throughout the season rather than setting a single concentrated crop. Explore additional varieties in our
tomato plants collection.
How long does San Marzano take to mature?
San Marzano typically begins producing ripe fruit approximately 75–85 days after transplanting, depending on temperature and growing conditions.
Is San Marzano suitable for home vegetable gardens?
This variety performs well in raised beds and traditional garden rows with full sun and support. You can browse more options in our
annual vegetable plants collection.
