Scilla is a genus of flowering plants in family Hyacinthaceae, comprising about 90 species. It is commonly known as the Squill. The species can be found growing in woodlands, sub alpine meadows, and seashores across the Old World ( the parts of Earth known to Europeans, Asians and Africans in the 15th century).
Scilla is a bulb-forming perennial, and is suitable for rock gardens and good for naturalizing. It bears colorful flowers in early spring , but a few are autumn flowering. The flowers are usually blue, white, pink and purple.
Scilla siberica ( Siberian Squill, wood squill, spring beauty) is a bulbous, reliable and hardy perennial. It is native to Siberia and bears bright blue, nodding flowers in early spring. It naturalized rapidly from seed. Most plants have blue flowers, but the variety 'Alba' has white flowers. The flower is 3 - 5 star-shaped nodding flowers on each stem, and each stem can produce 3 -4 flower stems. Its stamens are separate, and pollen is the same color as the flower. After flowering, the flower stems become limp and seed pods are formed. When mature, the pod becomes purple and splits open, releasing small, dark-brown seeds. When seed is mature, the leaves wither and the plant goes into dormant stage until the next spring. Scilla siberica prefers partial shade growing condition, and is suitable for rock gardens, beds, borders, under trees and shrubs.
Scilla peruviana (Portuguese Squill) is native to the western Mediterranean region in Iberia, Italy, and northwest Africa. It is a bulbous perennial plant and is commonly grown as an ornamental plant for its spring flowers. The flowering stem is 15 - 40 cm tall, bearing a dense pyramidal raceme of 50 -100 purple-blue flowers, each with 6 tepals.
Plant Scilla in sun or partial shade, and well-drained soil. Propagation is by ripe seed or divide offsets in summer. It is usually pest and disease free but beware of viruses attack.