Salix sachalinensis 'Golden Sunshine' is a vigorous and adaptable willow with rich, dramatic, solid gold foliage.

Salvia greggii 'Lipstick' has evergreen aromatic foliage and long-blooming red flowers with white throats.

Salvia Mirage 'Rose Bicolor' has bi-coloured flowers of rose and cream blooming all summer with fragrant foliage. Prefers hot dry spots.

Salvia gauranitica 'Purple and Bloom' is an anise-scented sage with purple tubular flowers and black sepals.

Salvia koyamae is a rare Japanese yellow sage with green, hairy foliage and yellow tubular flowers popular with pollinators.

Salvia madrensis 'Red Neck Girl' has maroon stems that are adorned later in the season with a compliment of yellow flowers.

Salvia nemerosa 'Caramia' is an improvement upon 'Caradonna' with a more compact habit and 3 times as many blooms!

Salvia Color Spires 'Azure Snow' has fragrant, two-lipped, bi-colour flowers in violet-blue and white with aromatic foliage.

Salvia 'Violet Riot' has fragrant two-lipped flowers in violet-blue with dark purple sepals and aromatic, green foliage.

Sambucus canadensis 'Ranch' produces delicious black berries on more compact plants.

Sambucus nigra Sambuco is one of the most flavourful and tasty of the European black elderberries.

Sandersonia aurantiaca has pendulous, bell-shaped, bright orange flowers that look like Chinese lanterns.

Sanguisorba 'All Time High' is a 6-8 foot tall burnet with fluffy, white, pipe cleaner-like blooms.

Sanguisorba 'Blackthorn' is a 2-3 foot tall burnet with long-blooming rosy-pink, bottlebrush flowers.

Sanguisorba 'Strawberry Fost' is a medium sized burnet with long-blooming white and frosted-pink, pipe cleaner-like flowers.

Saponaria x lempergii 'Max Frei' is a hybrid soapwort popular as a front of border perennial for English cottage-style gardens.

Sarcococca humilis Winter Gem has red buds and sepals which give the fragrant blooms a bicolour effect.

Sarracenia flava var. cuprea is one of the most dramatic pitcher plants with tall, lime pitchers marked with red and copper.

Sarracenia leucophylla hybrid has tall, narrow green pitchers marked with white to light green mottling amongst red veins.

Sarracenia oreophila hybrid is a 2 foot tall pitcher plant with dramatic yellow to lime green pitchers and golden yellow flowers.

Sarracenia 'Bug Bat' is a carnivorous pitcher plant with red flowers and hoods atop tall, chartreuse-green pitchers.

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

Saxifraga stolonifera 'Harvest Moon' is a strawberry begonia with golden foliage with hints of burgundy and pink-white flowers.

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

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