The Tacitus lettuce seeds produce a full size Romaine that has proven excellent for an emphasis on hearts. Medium green color with a very erect habit and slight savoy leaves. It has a strong resistance to internal burn and is slow bolting. These romaine lettuce seeds are designed for main and fall seasons. It does not perform well in the cold. These Romaine lettuce seeds are resistant to HR Bl:16-26,32EU/Nr:0, IR LMV:1.