Carex 'Silver Sceptre' (Sedge 'Silver Sceptre'): Evergreen clump-forming grass with green strappy leaves striped with white. Ideal for border edging and pots. Hardy. Up to 50cm.

Dryopteris affinis 'Cristata The King': Tall, semi-evergreen fern with arching fronds,each leaflet is divided (Crested). Best in moist semi-shade. Hardy. Up to 1.2m. [Collect Only]

Dryopteris wallichiana (Alpine wood fern): A deciduous fern with hairy stems and green upright shuttlecock-like foliage. Shade-loving. Hardy. Up to 1m. [Collect Only]

Echinacea 'Green Envy' (PBR) (Coneflower 'Green Envy'): Green flowers with a slight pink tinge to petal tips and pink cone. To 1.2m. [Collect Only]

Eryngium agavifolium (Agave-leaved sea holly): A statement foliage plant with an agave-like rosette from which arises tall spikes with cone-like grey-green flowers. Loved by bees. Hardy. Up to 1.5m. [Collect Only]

Euphorbia amygdaloides var. robbiae (Mrs Robb's bonnet): Great plant for difficult dry, shady areas. Evergreen dark-green leaves and vibrant lime-green flowers in spring. Suckers and can spread.

Euphorbia characias subsp. wulfenii (Mediterranean spurge): Evergreen perennial with blue-green leaves and vibrant lime-green flowers in early summer. Prefers full sun. Hardy to about -10C, but not for long periods. Up to 1.2m. [Collect Only]

Euphorbia mellifera (Honey spurge): A stately plant which makes a dramatic feature in sheltered spots. [Collect Only]

Euphorbia palustris (Marsh spurge): Bright acid green bracts in spring. Height to 90cm. Hardy. [Collect Only]

Euphorbia polychroma (Many-coloured spurge, Syn. Euphorbia epithymoides): Bright, acid-green bracts in spring. Forms neat mound at front of border. To 30cm. Hardy

Hakonechloa macra (Japanese Flowing Grass): Mounds of arching green leaves that just touch the ground. A wonderful shade lover grown for its elegant flowing form.

Mathiasella bupleuroides 'Green Dream': Very unusual plant with bold sprays of green flowers in late spring

Miscanthus sinensis 'Morning Light': Elegant grass sporting fine green leaves with silvery-white central stripee. Flowers in late summer. Height to 1.3m. Hardy. [Collect Only]

Primula 'Francisca' (Polyanthus 'Francisca'): Really unusual variety with green/acid yellow flowers. To 20cm. Hardy.

Tellima grandiflora 'Forest Frost' (Fringecups): Slender spikes of pinkish flowers late spring to mid-summer. Semi-evergreen reddish foliage. Great in shade. Height to 30cm. Hardy

Thalictrum isopyroides: Dainty froth of finely divided fern like flowers topped with sprays of tiny green flowers in summer. A shade lover. To 30cm. Hardy.