Simplify the following text for a Grade 8 native English-speaking person.
Original: The most widely grown is the variegated cultivar ` Variegatum ' , with one or two broad yellowish-white bands running along the length of each leaf , but natural , entirely green plants are also grown .
Simplified: The most widely grown is the variegated cultivar ` Variegatum ' . It has one or two broad yellowish-white bands running along the length of each leaf .