San Marzano tomatoes are among the more famous Italian paste tomatoes. In their native Italy they are generally grown in a rich volcanic soil near the base of Mount Vesuvius where they fare well. San Marzano tomatoes are the only tomatoes that can be used for Vera Pizza Napoletana - True Neapolitan Pizza.
Their native environment enhances their natural sweet flavor and low acidity. They are coveted by the culinary realm for their firm pulp, easily removed skin and low seed count which makes them excellent for cooking.
However - outside their native environment they do not produce the same quality of yield without a struggle. They have a very low germination rate, are prone to Blossom End Rot, splitting and the flavor is also inferior without adequate environmental and cultural care.
If you are a seasoned gardener up to a challenge - here you have it Go for it ! If you decide to plant this tomato and do overcome some of it's many issues you can look forward to a healthy yield of some of the best paste tomatoes available.
If you are a novice gardener I would suggest you look to other paste tomatoes such as Roma Heirloom Tomato which is much easier to grow.
Start seeds indoors 6 - 8 weeks before planting outdoors.
Northern gardeners are advised to start seeds indoors at least a few weeks before transplanting outside. Soil temperature should be in the vicinity of 60 F before transplanting in the outdoor environment. Harden off first.
pH 6.0 to 6.8
USDA Zones 5 to 11
Fruit Weight 4 oz.
Germination 7 - 14 days.
Matures 75 to 85 days
Space 30 - 40 inches apart
Height 6 to 7 feet
Prone to cracking - be sure to water sufficiently.
Tomato hornworms, pill bugs and slugs, rabbits, squirrels, deer, assorted rodents are common pests.