The term 'COLORFUL SHRUB' can be solved by the crossword solution SPIREA, which is a flowering shrub that is known for its colorful blooms. SPIREA is a genus of shrubs native to temperate regions of the Northern Hemisphere, and it is often used as an ornamental plant in gardens. The shrub typically produces clusters of small white or pink flowers in the spring, and its foliage can range from yellow to purple depending on the variety.