perennial

Papaver orientale 'Princess Victoria Louise' (Princess Victoria Louise Poppy)

Papaver orientale 'Royal Wedding' (Royal Wedding Poppy)

Penstemon barbatus 'Riding Hood Purple' (Beard Tongue)

Penstemon barbatus 'Riding Hood Red' (Beard Tongue)

Penstemon barbatus 'Rock Candy Pink Improved' (Beard Tongue)

Penstemon serrulatus

Perovskia atriplicifolia 'Little Spire' (Little Spire Russian Sage)

Perovskia atriplicifolia 'Blue Steel' (Blue Steel Russian Sage)

Perovskia atriplicifolia 'Compact Bluesette' (Dwarf Russian Sage)

Perovskia atriplicifolia (Russian Sage)

Phlox subulata 'Candy Stripe' (Candy Stripe Moss Phlox)

Phlox subulata 'Emerald Cushion Blue' (Emerald Cushion Blue Moss Phlox)

Phlox subulata 'Emerald Pink' (Emerald Pink Moss Phlox)

Phlox subulata 'Scarlet Flame' (Scarlet Flame Moss Phlox)

Phlox subulata 'White Delight' (White Delight Moss Phlox)

Physostegia virginiana 'Crystal Peak White' (Crystal Peak White Obedient Plant)

Physostegia virginiana 'Pink Manners' (Obediant Plant)

Podophyllum 'Spotty Dotty' (Spotty Dotty Asian Mayapple)

Polemonium 'Bressingham Purple' (Bressingham Purple Jacob's Ladder)

Polemonium 'Hurricane Ridge' (Jacob's Ladder)

Polemonium caeruleum 'Brise D'Anjou' (Brise D'Anjou Jacob's Ladder)

Polemonium pulcherrimum 'Golden Feathers'

Polygonatum multiflorum (Solomon's Seal)

Pulmonaria 'High Contrast' (Lungwort)

Rodgersia 'Bronze Peacock'

Rodgersia henrici

Rodgersia podophylla 'Braunlaub'

Rudbeckia 'Lion Cub' (Sweet Coneflower)