Despite subsequent introductions, Marketmore 76 remains the most widely-planted open-pollinated slicing cuke in the US. The 8-9” dark green fruits stay green and mild-tasting even under heat stress. Multiple disease resistances keep plants vigorous and highly productive across a long picking season.
Plant about 12 inches apart or in hills of 3-4 plants as they will vine all over the place. Succession plantings will ensure a continuous supply. Harvest when they are size you are looking for. For pickles harvest smaller and for eating you can wait a little.
Very tender, will not survive frost. Pick frequently for best production. Using compost in conjunction with row covers (rather than either alone) increased cucumber yields at the University of Michigan (courtesy of Fedco Seed Catalog).