|Paeonia lactiflora 'Sarah Bernhardt'|
Fragrant, fully double, rose pink blooms. May need staking to support large, heavy flowers.
|Papaver orientale ''Medallion''|
Long-blooming variety. Plum-red flowers fading to dusky pink.
|Penstemon 'Pensham Plum Jerkum'|
Plum-purple flowers with white mottled throats.
Also known as White Bedder. Clusters of large white, tubular flowers over a long season.
|Persicaria bistorta 'Superba'|
Large, fat pink spikes in early to mid summer. To 30in (75cm). Sun or part shade. Needs moist soil. Good in borders or along edge of pond. Insect friendly.
Attractive chevron-marked leaves. Spikes of small red flowers.
Whorls of tubular, pale yellow flowers. Rough-textured, sage-like leaves.
|Phlox 'Minnie Pearl'|
Pale pink buds opening to pink-white flowers.
|Phlox paniculata 'Monica Lynden Bell'|
Large heads of scented white and pale pink flowers.
|Phlox paniculata 'Norah Leigh'|
Creamy variegated leaves. Many pale mauve flowers with pink eyes.
|Phlox paniculata 'Tenor'|
Deep red-pink, scented flowers over dark foliage.
|Phlox paniculata 'Blue Paradise'|
Rounded heads of fragrant, dark-eyed, violet-blue flowers.
|Phlox x arendsii 'Luc's Lilac'|
Lightly-scented, soft pinky-lilac flowers. Neat habit.
|Physostegia virginiana 'Miss Manners'|
Spikes of white, tubular flowers.
|Physostegia virginiana 'Vivid'|
Dense spikes of dark rose flowers.
|Physostegia virginiana 'Bouquet Rose'|
Soft lilac-pink spikes of flowers over long period.
Known as the Obedient Plant.
Dramatic, fast-growing, herbaceous perennial. White or pink flower spikes develop into dark maroon berries.
|Pimpinella major 'Rosea'|
Flat sprays of rosy-pink flowers, fading to light pink.
|Plectranthus argentatus 'Silver Shield'|
Foliage plant. Bold silver grey, furry leaves. Pale blue-white flowers.
|Polemonium 'Northern Lights'|
Soft blue flowers, slightly scented, over ferny foliage.
|Polemonium 'Pink Beauty'|
Divided green leaves with mauve-pink, bell-shaped flowers.
|Polemonium reptans 'Stairway to Heaven'|
Variegated foliage flushed pink in cool weather. Violet-blue flowers.
|Polypodium 'Whitley Giant'|
Fern with very attractive, broad, evergreen fronds.
|Polystichum setiferum 'Pulcherrimum Bevis'|
Elegant fern with divided, deep green, lace-like fronds.
|Potentilla 'Monsieur Rouillard'|
Clusters of double or semi-double, rich red flowers.
|Primula 'Dark Rosaleen'|
Deep red flowers with yellow eye over glossy, bronze leaves.
|Primula 'Kusham Krishna'|
Grey-green crinkled foliage. Large, deep violet flowers with white eye.
|Primula sieboldii 'Snowdrop'|
Pure white flowers from rosette of leaves.
|Pulmonaria 'Diana Clare'|
Attractive silver-marked leaves for several months Purple-blue flowers. 12in (30cm) Prefers some shade.
Semi-evergreen perennial with silver-speckled leaves. Clear, pale blue flowers opening from pale pink buds.
|Pulsatilla vulgaris 'Heiler hybrids'|
Hairy buds open into flowers of red, pink, violet, cream or white. Attractive fluffy seedheads useful in flower arranging.
|Pulsatilla vulgaris 'Papageno'|
Large, semi-double with fringed petals, in purple, pink, red or white.
Attractive silky seed heads.
|Puschkinia scilloides var libanotica|
Small, star-shaped, near white flowers with pale blue stripe.