Camassia leichtlinii subsp. leichtlinii AGM is one of our favourite white-flowered camassias, flowering towards the end of the month. We use it in repeating clumps in the Spiral Garden to provide an early flowering statement, on the Long Border, and in the Herb Garden. Camassias originate from the damp fertile meadows of North America so like to be kept moist but never waterlogged. The racemes of star-shaped, creamy white flowers can reach 30cm; emerging from strap-like bright green leaves.