Campanula lactiflora 'Alba' (Milky bellflower 'Alba'): Tall stems with clusters of pure white flowers in mid-summer. Ideal for filling out borders and adding height. Hardy. Up to 1.2m

Campanula persicifolia (Peach-leaved bellflower): Tall spikes of large, cup-shaped blue flowers over slender foliage in mid-summer. To 1.2m. Hardy

Darmera peltata (Umbrella plant): Arching sprays of pretty pink flowers in early spring above large ornamental leaves. [Collect Only]

Euphorbia griffithii 'Dixter' (Spurge 'Dixter'): An upright perennial with bright orange bracts which brighten the early spring garden. Hardy. Up to 1m. [Collect Only]

Lysimachia barystachys (White Loosestrife): Upright spikes of white flowers in late summer. Vigorous and very attractive to bees and butterflies. To 1m. Hardy

Monarda 'Prarienacht' (Bergamot 'Prarienacht'): Whorls of zingy purple flowers over bright green aromatic foliage. Very attractive to bees. Hardy. Up to 90cm.

Persicaria amplexicaulis 'Firetail' (Red Bistort 'Firetail'): Tall perennial with spikes of bright pink flowers in late summer. Large oval pointed leaves. A robust plant. Hardy. Up to 1.2m. [Collect Only]