Saxifraga fortunei 'Iyo Hakusui' has white flowers with slender, long petals arranged in large open panicles. Velvet saxifrages have attractive, thick, mounded foliage.

Saxifraga fortunei 'Rubrifolia' has clusters of white flowers with slender, long petals and two-toned foliage.

Saxifraga stolonifera 'Tricolor', the strawberry geranium or begonia, has variegated green, white, pink and maroon foliage.

Scabiosa Flutter 'Pure White' produces glistening, pure white pompoms from spring through summer.

Scabiosa 'Giga Silver' is a pincushion flower with extra large, silvery white blooms.

Schisandra chinensis 'Eastern Prince' is a self-fertile five-flavour berry that can produce up to 20 pounds of fruit per vine.

Schizophragma hydrangeoides 'Moonlight' has lovely, silvery blue-green leaves that are deeply veined in green.

Schizophragma hydrangeoides 'Moonlight' has 9" (23cm) clusters of flowers are ringed by flat lacy white bracts.

Portuguese squill, Scilla peruviana 'White Moon', has strap-like leaves and an exotic dome of small, star-like, white flowers.

Sedeveria 'Letizia' forms colonies of upright, trunked, bright green rosettes that can develop bright red tints with stress.

Sedum nussbaumerianum 'Coppertone' has trailing stems in shades of amber and glowing orange.

Whatever the real identity of Sedum T001, it has cute, cupped, rounded leaves that are green on top and dusty rose beneath.

Sedum ternatum 'Larinem Park' is a fast-growing evergreen woodland stonecrop tolerant of sun to shade.

Sedum 'Ice Ruffles' is a stellar variegated stonecrop with burgundy-red stems and ruffled, blue-green leaves with variegated yellow margins in spring turning to creamy white by summer.