Up for buy are 25 Waltham Butternut Winter Squash Seeds.Waltham Butternut produces high yields and a rich flavor. The fruits are 8 to 10 inches long and have a deep orange interior.The most popular butternut squash.This butternut has an excellent interior texture and color. Waltham has a creamy, rich, dry yellow-orange flesh that has a nutty flavor. Vine are extremely vigorous so leave plenty of room for this butternut. One of the best keeping winter squash.