Hydrangea is a genus of about 100 species of flowering plants native to southern and eastern Asia (from Japan to China, the Himalaya and Indonesia) and North and South America. Hydrangeas produce flowers from early spring to late autumn. The flowers of Hydrangea are carried in bunches, at the ends of the stems. Each individual Hydrangea flower is relatively small. However, the display of color is enhanced by a ring of modified bracts around each flower. In most species of Hydrangea the flowers are white, but in some species, can be blue, red, pink, or purple. In Hydrangea species the exact color often depends upon the acidity or alkalinity of the soil. Acidic soils produce blue flowers, neutral soils produce pale cream petals, and alkaline soils result in pink or purple. An exciting hardy Hydrangea from Holland, 'Limelight' has unique bright chartreuse blooms in mid-summer that hold bright and refreshing color right into autumn when the blooms change color to a rich deep pink. The autumn display of chartreuse and pink blooms on the same plant is breathtaking! The color makes a great addition to the garden and it blends wonderfully with all other colors. Use 'Limelight', either fresh or dried, in bouquets to make a unique floral design. This is an easy to grow plant with reliable flowering and flower color regardless of soil pH. The flower heads are of good size, ranging from 6 to 12 inches and are held upright on the shrub. The blooms are well distributed making a very nice plant and display. Hardy in zones 3-9.