Scilla peruviana, often called the giant squill, is a robust bulbous perennial characterized by a compact form, typically reaching about 10 to 16 inches in height when flowering, with an overall spread of roughly 8 to 14 inches. It grows from a sizable bulb measuring approximately 2 to 3 inches in diameter, which produces a dense basal rosette of thick, glossy, strap-shaped leaves. These leaves generally measure 8 to 18 inches long and about 0.5 to 1.5 inches wide, arching outward and sometimes slightly recurving to form a lush, fountain-like clump close to the ground. In late spring, sturdy, leafless flower stalks emerge, rising to about 12 to 20 inches tall, each supporting a large, rounded inflorescence that can span 3 to 6 inches across. This flower head is composed of numerous tightly packed, star-shaped blossoms—often 50 or more—each individual flower measuring around 0.4 to 0.8 inches wide. The blooms are most commonly a vivid deep blue with contrasting darker central veins and prominent stamens, though occasional white or pale forms occur. Altogether, the plant presents a bold, dome-like floral display above a neat base of foliage, with proportions that make it especially effective in containers, borders, or Mediterranean-style plantings.