The color of lavender flowers comes from the calyx, or bud, and corolla, or petals. These two parts often have slightly ...

As plants have been bred to maximize color, shape ... Floral scents begin as oils that are produced by the petals in most plants. Because these oils evaporate easily in warm weather, scientists call ...

Flowers like hibiscus use an ... long before the petal shows any visible color. The petal acts like a 'paint-by-numbers' ...