The following list gives a few examples of the hardy and non-hardy perennials that need to grow in an acidic soil:

Hardy

• Cypripedium reginae (Showy lady's slipper orchid)
• Darlingtonia (Cobra lily)
• Drosera (Sundew)
• Pinguicula (Butterwort)
• Trillium
• Uvularia (Bellwort)

Not-Hardy

• Anigozanthos manglesii (Kangaroo paw)
• Nepenthes
• Sarracenia flava (Yellow trumpet pitcher plant)