Ajuga reptans (Bugle): Superb ground cover plant with purplish green leaves and blue flower spikes in summer. Very attractive to bees

Ajuga reptans 'Alba' (Bugle, white flowered): Superb ground cover plant with bright green leaves and white flower spikes in summer. Very attractive to bees

Ajuga reptans 'Catlin's Giant' (Bugle 'Caitlin's Giant'): Superb ground cover plant with bronze-purple leaves and blue flower spikes in summer. Semi-evergreen. Very attractive to bees.Hardy. Up to 30cm.

Ajuga reptans Black Scallop = 'Binblasca' (PBR) (Bugle 'Black Scallop'): Shiny, darkest purple-red leaves look near black. Short spikes of blue flowers in summer.

Lamium orvala: A woodland perennial with large, crushed strawberry colour, lipped flowers in early summer. Hardy. Up to 50cm.

Persicaria affinis 'Darjeeling Red' (Knotweed 'Darjeeling Red'): Semi-evergreen mat-forming perennial with green narrow leaves that turn bronze over winter. Spikes of pink poker-like flowers which darken with age.

Symphytum azureum: A spreading perennial with green leaves and clusters of pure blue flowers May-July. Grows vigorously in damp shade. Up to 60cm

Thalictrum aquilegiifolium (French meadow rue): Fluffy heads of pale pink or white flowers in early summer