These are probably King Alfred, but just ask for Big Yellow Daffodils at your nursery...also known as: The Daffodils That Were Here When We Moved In And We Bought More. Good in areas bordering wilderness...deer hate them. They are quite poisonous as are all in the family. Add bone meal or fertilizer made for bulbs when planting. Once you plant them, they could potentially reward you for the rest of your life. If really crowded, you might consider dividing them.