A large daffodil plant, also known as a "large-cupped daffodil," is a variety of daffodil that grows relatively tall, typically reaching 16-18 inches in height, with larger flowers compared to smaller daffodil varieties, often featuring a wide, cup-like center surrounded by petals; they are considered versatile and can be planted in various garden settings, thriving in well-drained soil with full sun to partial shade.