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San Marzano Tomato Seeds for Planting – Non-GMO Heirloom Variety with Growing Instructions for a Home Vegetable Garden
Grow the world-famous San Marzano Tomatoes, an Italian heirloom variety cherished for their rich flavor, firm flesh, and low acidity—perfect for sauces, pastes, and gourmet cooking. These non-GMO heirloom seeds produce elongated, deep-red fruits that thrive in home gardens, delivering both authenticity and outstanding taste.




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Features
Life Cycle
Annual plant
Planting Season
Spring, Summer
Growth Habit
Indeterminate vine
Flavor Profile
Sweet, rich
Plant Characteristics
Elongated fruits
Use
Sauces, canning
Growing Conditions
Full sun
Harvest Advantages
Heavy yields
Plant Resistance
Crack resistant
About San Marzano Tomato Seeds
Solanum lycopersicum
Seed Names
San Marzano tomato
Seed Type
Non-GMO heirloom
San Marzano tomato seeds are prized for producing classic Italian plum tomatoes with exceptional flavor. Known for their elongated shape, meaty flesh, and low acidity, these tomatoes are ideal for sauces, pastes, and canning. A gardener’s favorite, San Marzano plants thrive in warm, sunny conditions and yield abundant harvests throughout the season.
Planting Information
Light Requirement
Full sun
Planting Depth
1/4 inch
Sowing Method
Transplant preferred
Plant Spacing
18–24 inches
Days to Maturity
75–85 days
Soil Preparation
Start indoors 6–8 weeks before frost ends
Hardiness Zones
USDA 5–11
Water Needs
Regular, deep watering
Planting Season
Spring after frost
Coverage
Seed Count
Recommended Coverage
100
up to 50 sq. ft.
500
up to 250 sq. ft.
1000
up to 500 sq. ft.
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These seeds germinated quickly and the seedlings were very strong. By mid-summer, I had a good harvest, and the tomatoes were juicy and full of classic San Marzano flavor.
I planted these in my raised beds, and the tomatoes were fantastic for making sauces and pastes. Very authentic flavor, just like the San Marzano tomatoes you find in stores in Italy.
I was skeptical about growing tomatoes from seeds, but these were fantastic. The plants are vigorous, and I ended up with more tomatoes than I expected. Perfect for canning and sauces.
I�ve grown tomatoes for years, and these seeds produced consistently large, flavorful fruits. They handled my garden�s hot summer surprisingly well, and the plants stayed healthy throughout.
These seeds produced healthy plants that bore lots of fruit. I was happy with the overall quality, though a few fruits were smaller than expected. Still, very good for the price.