Here:
-multiple-colored flowers
like the name suggests it's a plant with multiple-colored flowers
-flower color gradient
once again like the name suggests it's a plant with flowers that fade from one color to another color
-variegated leaves
the plant's leaves have stripes
-multi-colored stem
like the name suggests again the plant's stem is multi-colored
-fancy stem color
the plant's stem is an odd color
-small but strong
the plant is mini
-gentle giant
the plant is big
-a real team player
the plant has multiple stems
I'm unsure about the other two.