Grow And Cook Your Own Potatoes Fresh From The Vegetable PatchSecond Earlies If planted in Autumn would be ready to harvest within 12 14 weeks. The tubers are long with a yellow skin, a firm yellow waxy flesh and have very high resistance to Foliage and Tuber Blight.This favoured variety is most commonly used in salads in the United Kingdom as they are packed with flavour and have excellent cooking qualities.