Daylilies are one of my favourite flowering perennials which have the added benefit of being edible. They're extremely easy to grow require little maintenance just a good amount of sun with a well drained soil to do well. Daylilies tolerate drought well but do best if watered weekly and tolerate grey water far better then most other plants (but I wouldn't eat them).
The regelia group of irises are closely related to the oncocyclus group and originate from Central Russia, east to Afghanistan and Asia. They grow on dry banks in mountain valleys.
