Hyacinthoides non-scripta is a perennial plant that grows from a bulb. It produces 3–6 linear leaves, all growing from the base of the plant, and each 7–16 mms wide. Each flower is 14 – 20 mms long with two bracts at the base.
There are two main varieties H. non-scripta has dark flowers in one-sided, nodding racemes, with strongly re-curved petals and white pollen. H. hispanica has paler flowers produced on all sides of the upright stem, less re-curved petals and blue pollen.Bluebells in time spread producing a carpet of purple/blue flowers with spectacular results.
This image taken in Bute Park, Cardiff illustrates the consequence of that colour against the backdrop of trees that provide them shelter.