Agastache rugosa 'Liquorice Blue' (Korean mint 'Liquorice Blue'): Spikes of warm blue lipped flowers from late June onwards. Very attractive to bees. Aromatic foliage. To 1.5m. Hardy in light soils.

Agastache rugosa f.albiflora 'Liquorice White' (Korean mint 'Liquorice White'): Tall, aromatic perennial with spires of tiny white flowers. Aromatic foliage. To 1.5m. Fully hardy in light soils. May self-seed.

Cephalaria gigantea (Giant scabious): Very tall wavy stems topped with large lemon yellow scabious-like flowers. Easy to grow. May need staking or support. Hardy. Up to 2m. [Collect Only]

Epilobium angustifolium 'Album' (White Rosebay Willowherb. Syn. Chamaerion angustifolium 'Album'): Slender spires of white flowers in late summer. Spreads rapidly through underground runners but doesn't self-seed.To 1.8m. Hardy. [Collect Only]

Phlomis tuberosa 'Amazone': Tall spikes bearing whorls of pink spikes in mid-summer. Hardy. To 1.5m [Collect Only]