Buy 2 Potato Growing Bags & get: FREE Pair of Potato Cleaning Gloves FREE 5 tubers of Potato Swift FREE 5 tubers of Potato Charlotte Easy to use planters, ideal for growing potatoes in small gardens or on patios. For best results plant 5 tubers per bag. The volume of the bag is Approx. 40 litres. Delivery January to February. Potato varieties are: Swift, first early variety, producing heavy crops of round, smooth, white-fleshed baby new potatoes. Charlotte, Which? Best Buy award winner with firm creamy flesh & waxy, yellow skin. This popular second early variety makes an excellent salad potato; delicious eaten hot or cold.