The Spanish Dagger Yucca plant is a popular specimen for landscapes. The blooms of the Spanish Dagger Yucca plant are creamy white and rise from the top of the plant to about 4 ft. in height. The native Spanish Dagger plant grows like a small palm tree to 5 ft. tall. The Spanish Dagger Yucca plant is a great plant to containerize or to grow on the edge of the property. Beautiful flowers form from the seeds of the Spanish Dagger Yucca.