Cucumber Seeds Excellent for slicing, pickling or in salads the Marketmore 76 is a delicious, large, tasty and juicy cucumber. Heirloom. Non-GMO. Organic. Open pollinated. The Marketmore is a large cuke that has been grown in home gardens for many years and has become the favorite of some vegetable farmers. This cucumber does especially well in humid and hot climates. This annual should be planted in the warm season and in direct sunlight. Direct sow a half an inch into the dirt. Space seeds at least one foot apart. Sixty five days until maturity. The fruit will grow up to nine inches in length. Grow your own Marketmore 76 this season and enjoy delightfully juicy cukes!