Perovskia 'Lacey Blue' is a dwarf cultivar of Russian sage with the classic silver-green foliage and purple-blue flowers.

Perovskia 'Silvery Blue' is a dwarf cultivar of Russian sage with extra silver foliage and purple-blue flowers.

Persicaria affinis 'Border Jewel' is an attractive ground cover with multicoloured flower spikes and leaves turning brick red in fall.

Persicaria 'Blackfield' has wands of deep red flowers that last for months above bold mounds of lance-shaped, mid green foliage.

Wands of red flowers last for months above bold mounds of lance-shaped foliage.

Persicaria amplexicaulis 'Pink Elephant' is a compact mountain fleece with long blooming wands of pink flowers.

Persicaria bistorta 'Hohe Tatra' forms slowly spreading, semi-evergreen mounds topped with wands of densely-packed, glowing pink flowers.

Persicaria bistorta 'Superba' is a common bistort with spikes of soft pink flowers and semi-evergreen foliage.

Phlomis cashmeriana is an stately, architectural perennial with felted grey-green leaves and tall spikes with whorls of lavender pink, snapdragon-like flowers.

Phlomis fruticosa is a bold, architectural perennial or subshrub with felted, grey-green, sage-like leaves and clusters of bright yellow flowers in summer.

Phlomis russeliana is a tall and stately Jerusalem sage with mounds of fuzzy foliage and stems with clusters of buttery yellow flowers.

Phlox paniculata 'Jeana' is a standout pollinator magnet with excellent powdery mildew resistance.

Phormium 'Mat's Merlot' has leaves that are dark maroon on top and a smoky green below.

Phormium 'Apricot Queen' is a bright and bold cultivar with yellow leaves with a subtle cast of apricot and green edges.

Phormium 'Black Rage' is one of our favourite dark New Zealand flax with lusty shades of black, grey-black, and blue-black.

Phormium 'Jester' is an unmistakable cultivar with broad reddish-pink leaves edged in contrasting olive green.

Phormium 'Pink Panther' is a dramatic cultivar with glowing pink leaves edged in burgundy brown.

Phormium 'Platt's Black' is a bold cultivar with rich chocolate foliage.

Phormium 'Rosie Chameleon' is beautiful cultivar with glowing reddish pink centres and burgundy edges.

Phormium 'Wings of Gold' is a bright and beautiful cultivar with slightly arching, green leaves edged in yellow and cream.

Phygelius Cherry Ripe has glowing, cherry red, tubular flowers that bloom all summer long. Great for hummingbirds.

Phyllostachys parvifolia is a good option for a timber bamboo in colder climates.

P. japonica 'Little Heath' is a beautiful evergreen shrub with white margins on its leaves and mahogany-red new growth.