Agapanthus Africanus

Agapanthus Africanus is also known as the African Blue Lily or Lily of the Nile

Agapanthus is a clump forming perennial, it's a beautiful flowering plant with large round heads of blue or white tubular hyacinth like flowers on top of a long stem, the leaves are evergreen and when planted in a group they make a stunning display. 
Max Height 60cm. Max Spread 45cm. Flowers June to August. Needs a dry sunny position.

TIP: Mulch over winter when flower dies back to protect from frost