Imagine your own tasty home-grown potatoes First Earlies: If planted in Autumn would be ready to harvest within 10-12 weeks. Also has a good all round disease resistance to Common Scab & Blackleg. a waxy type potato, great for boiling & for salads. These tasty, Pentland Javelin potatoes are one of the best First Earlies. They will provide you with a heavy crop of short, white skinned tubers. They also have a good resistance to most diseases such as common scab & blackleg.