The following list shows some examples of the perennials that can tolerate growing in a clay soil:

• Aruncus dioicus (Goat's beard)
• Astilbe (False goat's beard)
• Dodecatheon
• Filipendula ulmaria 'Aurea' (Golden meadowsweet)
• Hemerocallis (Daylily)
• Hosta (Plantain lily)
• Houttuynia
• Lysimachia
• Lythrum
• Phormium (Flax)
• Primula bulleyana (Bulley's candelabra primrose)
• Primula florindae (Himalayan cowslip)
• Ranunculus ficaria (Lesser celandine)
• Rheum (Rhubarb)
• Rodgersia
• Scrophularia auriculata (Water figwort)
• Trollius (Globe flower)

Can Tolerate Waterlogged Clay Soil

• Butomus (Flowering rush)
• Caltha (Kingcup)
• Gunnera manicata (Giant rhubarb)
• Lysichiton (Bog arum)
• Myosotis scorpioides (Water forget-me-not)
• Pontederia (Pickerel weed)