The red currant tomato (Lycopersicon pimpinellifolium) blooms in early to late summer and fruits in small, currant-shaped tomatoes. In order to set fruit, night temperatures must be above 55 degrees F. The fruit is very flavorful and recommended for use in sauces and juices. Transplant your seedlings or starts into the garden three weeks after the last frost date in your area. The red currant tomato is hardy to USDA zone 9.
Prepare the planting bed by aerating the soil. Use the gardening fork to dig up the area to a depth of 12 inches. Loosen the soil well and break up any clumps that are larger than your fist.
Add a 2-inch layer of compost, a 2-inch layer of sand and a balanced fertilizer at a rate of 1 lb. per 100 square feet. Mix the compost and fertilizer into the soil to a depth of 8 inches and then level the area with a rake.
Dig holes, 3 inches apart, deep enough so that the first leaves, on the bottom of the plant, are just above the surface of the soil. Pack the soil around the base of the plant and then water until the water puddles.
Water daily until the tomatoes begin to turn red and then cut back to watering only when the top inch of soil is dry.