Salix integra 'Flamingo' is a fast-growing willow with spectacular colour from variegated white, green and pink foliage.

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

Salvia greggii 'Cool Cream' has evergreen aromatic foliage and long-blooming white flowers with a pink flush.

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

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 'Back to the Fuchsia' has fragrant two-lipped flowers in dark fuchsia-pink tones with aromatic, dark green foliage.

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

Sambucus canadensis 'Nova' is an elderberry with white clusters of flowers followed by dark, delicious berries.

Sambucus canadensis 'York' is a black elderberry with white clusters of flowers followed by dark, edible fruit.

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.

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.

Schizophragma hydrangeoides 'Rosea' has lovely pink-flushed sterile florets around the lacey fertile florets.

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

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

Sedum Sunsparkler 'Angelina's Teacup' is a compact, dwarf form of 'Angelina' that does not bloom.

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

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

Sedum spurium 'Ruby' is a vigorous, mat-forming stonecrop with small, thick, ruby red leaves and pink flowers.