Scadoxus pole-evansii (syn. Haemanthus) is a stunning species that can reach four feet high with umbels of salmon orange.

Scadoxus puniceus (syn. Haemanthus) has beautiful clusters of golden anthers held on red filaments with burgundy bracts.

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

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

Scutellaria 'Pat Hayward' Sky's Edge is long-lived sage relative with long-blooming, violet-blue flowers from summer to fall.

Scutellaria resinosa 'Smoky Hills' is a dainty little sage relative with textured mounds of grey-green leaves and purple-blue early summer flowers.

Scutellaria suffrutescens or cherry skullcap is covered in bright pink to cherry red, snapdragon-like flowers from spring until fall.

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

Sedeveria 'Markus' has forms apple green rosettes of attractive, pointed leaves.

xSedoro ‘Blue Elf’ is the first inter-generic hybrid between Sedum and Orostachys. It has steel-blue tufted rosettes topped with tight clusters of dark-pink flowers that attract bees.

Sedum ellacombianum 'Cutting Edge' is a mounding sedum with scalloped, spatula-shaped leaves with gold margins.

Sedum floriferum ‘Winter Mahogany’ is a creeping stonecrop with yellow flowers and green foliage that changes to burgundy red for autumn and winter.

Sedum makinoi 'Variegatum' has handsome round, light-green leaves with creamy edges.

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

Sedum ochroleucum 'Red Wiggle' is an outstanding stonecrop forming multi-colour carpets of cherry red, orange-red, and green.

Sedum pachyphyllum 'Rose' forms cute, short-trunked colonies with cylindrical, powder blue leaves like elongated jelly beans.

Sedum perezdelarosae has blue, keel-shaped leaves in tight rosettes in branching colonies.

Sedum rupestre 'Rice Creek' Winter Fire is a stonecrop with yellow flowers and green foliage that turns red in the colder months.

Sedum 'Turquoise Tails' has turquoise blue, succulent foliage and tall stems topped with pale green to creamy yellow flowers.

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

Sedum spathulifolium is a creeping stonecrop with silver-grey to red succulent leaves and yellow starry flowers.

Sedum spathulifolium 'Carnea' is creeping stonecrop of silver-grey to red succulent leaves and yellow starry flowers.

Sedum spurium 'Cinnabar' is creeping stonecrop with small, thick green leaves flushed with red turning all cinnamon red in winter.

Sedum spurium 'Pink Cloud' is creeping stonecrop with small, thick, shiny, deep green leaves and masses of pink flowers in summer.

Sedum spurium 'Rhubarb' is creeping stonecrop with small, thick green leaves edged in red with red flowers in early summer.