Paeonia 'Prairie Charm' has yellow petals with a flush of scarlet at the centre.

Paeonia 'Raggedy Ann' has pure white ruffled flowers with gorgeous warm purple centres.

Paeonia 'Scarlet Heaven' has single, scarlet flowers touched with magenta.

Paeonia 'Sequestered Sunshine' has deep yellow flowers with orange centres. Itohs are exciting crosses between tree and garden peonies.

Paeonia 'Simply Red' has deep velvety red near single flowers. Itohs are exciting crosses between tree and garden peonies.

Paeonia 'Singing in the Rain' offers tones of pink, apricot, and creamy yellow. Itohs are exciting crosses between tree and garden peonies.

The double blooms of Paeonia 'Soleil d'Ambre' are a mix yellow, amber and pink. Itoh peonies are exciting crosses between tree and garden peonies.

Paeonia 'Strawberry Creme Brulee' emerge dark pink and ages to creamy-salmon pink. Itoh peonies are exciting crosses between tree and garden peonies.

Paeonia 'Symphonie Pourpre' has fuchsia-purple flowers edged with a pink picotee. Itohs are exciting crosses between tree and garden peonies.

Paeonia 'Unique' has single red flowers with yellow centres. Itohs are exciting crosses between tree and garden peonies.

Paeonia 'Watermelon Wine' has semi-double red flowers with yellow centres. Itohs are exciting crosses between tree and garden peonies.

Paeonia 'Yankee Doodle Dandy' has deep salmony-pink flowers with yellow stamens. Itohs are exciting crosses between tree and garden peonies.

Paeonia 'Yellow Crown' has yellow flowers with a blush of red at the centre. Itohs are exciting crosses between tree and garden peonies.

Paeonia 'Yellow Doodle Dandy' has semi-double to double lemon yellow flowers. Itohs are exciting crosses between tree and garden peonies.

Paeonia 'Pink Hawaiian Coral' is a stunning coral pink, semi-double peony that fades to apricot pink and yellow with time.

Paeonia 'Red Charm' is a stunning, bomb-type, double peony with large true red, fragrant flowers.

Panicum virgatum 'Niagara Falls' is a dramatic switch grass with arching powder blue foliage and creamy seedheads.

Panicum 'Northwind' is a Perennial Plant of the Year forming stately bluish green exclamation points for the garden.

Panicum virgatum 'Totem Pole' forms a strongly upright column of steel blue leaves and powder blue stems to 6 feet.

Papaver nudicaule 'Champagne Bubbles' is an Iceland Poppy with large, fragrant, brightly coloured flowers in various shades.

Papaver orientale 'Beauty of Livermere' has very frilly scarlet-red flowers with a dark centres and splotches.

Papaver orientale 'Bolero' has frilly raspberry-pink to lavender pink flowers with interior black blotches.

Papaver orientale 'Burning Heart' has ruffly, glowing, rich pink flowers that become darker, almost red, towards the black centres.

Papaver orientale 'Carnival' emeres red with a ruffled, white picotee edge developing white petal bases as they age.

Papaver orientale 'Central Park' has frilly raspberry-purple flowers with interior black blotches.