Oxalis griffithii 'Pink Double Flower' is a rare form with shamrock-like leaves and pink double flowers.

The redwood sorrel, Oxalis oregana, is a lovely native shade ground cover with beautiful shamrock foliage.

Oxalis oregana 'Klamath Ruby' is a special redwood sorrel with darker green leaves with wine red undersides.

Oxalis triangularis forms mounds of purple shamrocks with white to pale pink flowers.

Pachyphytum rzedowskii has cylindrical, succulent leaves with pointed tips in shades of bluish white flushing purplish.

A great alternative to the standard Pachysandra terminalis , P. procumbens also has fragrant flowers and more attractive foliage.

Pachysandra terminalis 'Green Sheen' forms whorls of glossy, leathery foliage topped with white flowers in spring.

Paeonia emodi 'Late Windflower' is a lovely species peony with smallish single pure white flowers with yellow centres.

Paeonia 'Bowl of Cream' has fully double creamy white flowers that can be up to 12 inches across!

Paeonia 'Candy Stripe' is a stunning flamed peony with white and pale pink petals liberally and variably streaked with magenta.

Paeonia lactiflora 'Charlie's White' is a beautiful double peony with white outer petal and creamy white to palest yellow inner petals.

Paeonia 'Duchesse de Nemours' is an heirloom peony more than 150 years old with stunning ivory white double flowers.

Paeonia lactiflora 'Festiva Maxima' is a classic, double white that has been grown for more than 150 years!

Paeonia lactiflora 'Green Halo' is an unusual semi-double peony with light green outer petals and creamy white inner petals. Lightly perfumed.

Paeonia 'Honey Gold' is a stunning white and yellow peony with a lovely fragrance.

Paeonia lactiflora 'Krinkled White' has ruffled and krinkled pure white petals with variably fringed edges around golden yellow centres.

Paeonia 'Moon River' is an elegant peony with pale pink and white flowers that change as the flowers age.

Paeonia Patio Peony 'Dublin' exhibits large, single white flowers with a yellow centre on compact plants.

Paeonia Patio Peony 'Madrid' displays ivory white petals surrounding an anemone centre of yellow and cream on compact plants.

Paeonia lactiflora 'Peppermint Patti' is a cool oddity with ruffled, twisted and lobed petals in shades of white, green, and deep pink to reddish pink.

Paeonia x suffruticosa 'Bai Xue Ta', also known as White Snow Tower, is a tree peony with pure white flowers.

Paeonia suffruticosa 'Renkaku' is a tree peony with pure white flowers with golden stamens.

Paeonia 'Cora Louise' has pure white flowers with a rich magenta purple centre.

Paeonia 'Joanna Marlene' is one of the most dynamic Itoh peonies with flowers changing through tones of pink, apricot, yellow, and cream.

Paeonia 'Love Affair' is a unique and elegant pure white Itoh peony with semi-double flowers with golden stamens.