Pachysandra terminalis

Pachysandra terminalis 'Green Carpet' AGM

Pachysandra terminalis 'Variegata' AGM

Paeonia 'Bowl of Beauty' AGM

Peony

Paeonia 'Kelway's Glorious'

Peony

Papaver orientale 'Beauty of Livermere'

Oriental poppy

Papaver orientale 'Black and White' AGM

Oriental poppy

Papaver orientale 'Patty's Plum'

Oriental poppy

Papaver orientale 'Picotee'

Oriental poppy

Papaver orientale 'Turkenlouis'

Oriental poppy

Papaver pilosum ssp. spicatum

Parthenocissus henryana AGM

Chinese Virginia Creeper

Parthenocissus quinquefolia AGM

Virginia Creeper

Parthenocissus tricuspidata AGM

Boston ivy

Parthenocissus tricuspidata 'Veitchii'

Boston ivy

Passiflora caerulea AGM

Passionflower

Passiflora caerulea 'Constance Elliott'

Passionflower

Passiflora 'Purple Haze'

Passionflower

Pennisetum alopecuroides 'Hameln'

Fountain grass

Pennisetum alopecuroides 'Moudry'

Fountain grass

Pennisetum orientale AGM

Giant fountain grass

Pennisetum orientale 'Tall Tails'

Giant fountain grass

Pennisetum setaceum AGM

Fountain grass

Pennisetum villosum AGM

Feathertop

Penstemon digitalis 'Husker Red'

Penstemon 'Firebird' AGM

Penstemon 'Fujiyama'

Penstemon 'King George V'

Penstemon 'Osprey' AGM

Penstemon 'Raven' AGM

Penstemon 'Snow Storm' AGM

Perovskia 'Blue Spire' AGM

Russian sage

Perovskia 'Filigran'

Russian sage

Persicaria affinis 'Darjeeling Red' AGM

Bistort (was Polygonum)

Persicaria affinis 'Superba' AGM

Bistort (was Polygonum)

Persicaria amplexicaulis 'Alba'

Bistort (was Polygonum)

Persicaria amplexicaulis 'Firetail' AGM

Bistort (was Polygonum)

Persicaria bistorta 'Superba' AGM

Bistort (was Polygonum)

Persicaria filiformis 'Variegata'

Persicaria 'Red Dragon'

Phalaris arundinacea var. picta 'Picta' AGM

Philadelphus 'Belle Etoile' AGM

Mock orange

Philadelphus coronarius 'Aureus' AGM

Golden mock orange

Philadelphus incanus 'Innocence'

Mock orange

Philadelphus 'Manteau d'Hermine'

Mock orange

Philadelphus 'Snowbelle'

Mock orange

Philadelphus 'Virginal'

Mock orange

Phlomis cashmeriana

Phlomis samia AGM

Phlox carolina 'Miss Lingard' AGM

Phlox paniculata 'Bright Eyes' AGM

Perennial phlox

Phlox paniculata 'Eventide' AGM

Perennial phlox

Phlox paniculata 'Graf Zeppelin'

Perennial phlox

Phlox paniculata 'Monica Lynden-Bell'

Perennial phlox

Phlox paniculata 'Norah Leigh'

Perennial phlox

Phlox paniculata 'Prospero' AGM

Perennial phlox

Phlox paniculata 'Starfire' AGM

Perennial phlox

Phormium tenax 'Sweet Mist'

New Zealand flax

Photinia 'Canivily'

Photinia davidiana 'Palette'

Photinia x fraseri 'Red Robin' AGM

Phygelius aequalis 'Yellow Trumpet' AGM

Cape fuchsia

Phygelius 'Funfair Coral'

Cape fuchsia

Phygelius 'Funfair Cream'

Cape fuchsia

Phygelius 'Funfair Orange'

Cape fuchsia

Phygelius x rectus 'Salmon Leap' AGM

Cape fuchsia

Phygelius x rectus 'Winchester Fanfare'

Cape fuchsia

Physocarpus opulifolius 'Dart's Gold' AGM

Ninebark

Physostegia virginiana var. speciosa 'Variegata'

Obedient plant

Physostegia virginiana 'Vivid' AGM

Obedient plant

Pittosporum tenuifolium 'Irene Paterson' AGM

Kohuhu

Pittosporum tenuifolium 'Purpureum'

Kohuhu

Pittosporum tenuifolium 'Silver Queen' AGM

Kohuhu

Pittosporum tenuifolium 'Tandara Gold'

Kohuhu

Pittosporum tenuifolium 'Tom Thumb' AGM

Kohuhu

Platycodon grandiflorus apoyama 'Fairy Snow'

Balloon flower

Platycodon grandiflorus mixed hybrids

Balloon flower

Platycodon grandiflorus 'Perlmutterschale'

Balloon flower 'Shell Pink'

Platycodon grandiflorus 'Zwerg'

Balloon flower

Polemonium caeruleum

Jacob's Ladder

Polemonium liniflorum

Jacob's Ladder

Polemonium pauciflorum  'Sulphur Trumpets'

Jacob's Ladder

Polemonium reptans 'Pink Dawn'

Polemonium 'Stairway to Heaven'

Variegated Jacob's Ladder

Polemonium yezoense var hidakanum 'Purple Rain'

Purple Jacob's Ladder

Polygonatum x hybridum AGM

Solomon's Seal

Polystichum aculeatum AGM

Hard shield fern

Polystichum setiferum AGM

Soft shield fern

Polystichum setiferum congestum

Soft shield fern

Polystichum setiferum 'Plumoso-multilobum'

Soft shield fern

Polystichum tsus-simense AGM

Potentilla 'Blazeaway'

Cinquefoil

Potentilla fruticosa 'Abbotswood' AGM

Cinquefoil

Potentilla fruticosa 'Elizabeth'

Cinquefoil

Potentilla fruticosa 'Katherine Dykes'

Cinquefoil

Potentilla fruticosa 'Manchu'

Cinquefoil

Potentilla fruticosa 'Primrose Beauty' AGM

Cinquefoil

Potentilla fruticosa 'Princess'

Cinquefoil

Potentilla fruticosa 'Red Ace'