The San Marzano is considered to be the best flavored tomato for whole canning and sauce making (Just for the record, I personally dispute this - ask me why when you see me next).
Plants are large and of good disease resistance. Vibrant red fruits are plum-shaped averaging 4-6 ounces, with thin skin and very meaty flesh. Whole fruits peel easily and cook down quickly, which is a nice bonus to their sutble sweet flavor.
HISTORY: Improved Italian heirloom. The San Marzano II strain originates from Parma, Italy, where it was developed for the 1950's canning industry.
SAN MARZANO II
VARIETY CHARACTERISTICS
GROWTH HABIT: Indeterminate
MATURITY: Mid-season
LEAF TYPE: Regular
FRUIT CLASS: Paste
FRUIT SHAPE: Oblong
FRUIT SIZE: Medium
FRUIT COLOR: Red
ORIGIN: Italian heirloom