This is a young daffodil that is from seed. It will bloom in a few years when the bulb is more established. These volunteers are hardy and will naturalize producing clumps!
This is a double daffodil in bloom.
These are full grown daffodils. They have naturalized and are adding to their numbers yearly.
Planting the bulbs a little deeper (like 6") will help daffodils naturalize.