This large array of greens, violets, oranges and pinks give you some of the crazy brights and glowing organics that are difficult to mix with traditional colors. All transparent, these are perfectly wonderful for multiple layers of glazing and will give you rich, complex color blends. The quinacridones in particular are some of the purest, brightest pigments available.
Tip: I recommend selecting a triad to start: two warms and a cool, or two cools and a warm. Start with an abstract underpainting, capturing merely the growth pattern of the plant(s). Continue using your original triad for the first 2-3 layers for unity. Then start adding darker variations on that triad to deepen values in darker shapes.