Which of the following plants are commonly used for cut flowers?

Plants commonly used for cut flowers are typically chosen for their visual appeal, longevity, and ability to thrive after being cut. Gerber daisies are popular in floral arrangements due to their vibrant colors and large blooms, making them eye-catching and attractive in bouquets. Foxgloves, with their elegant spires of bell-shaped flowers, add height and drama to floral designs. Liatris, known for its unique flower spikes, brings texture and interest, making it a favorite among florists.

The combination of these three plants provides a well-rounded selection for cut flower arrangements that can appeal to a variety of tastes and styles. Each of these species not only has a long vase life but also complements one another well in terms of form and color, which is essential for creating visually pleasing arrangements.

In contrast, the other options include plants that either do not hold up well as cut flowers or are not commonly used for this purpose, such as cacti, which are not suitable due to their spiny structure and lack of traditional floral characteristics.