Solanum tuberosum 'Bellanita' is a versatile gourmet fingerling potato with excellent tasting yellow flesh and high yield.

Solanum tuberosum 'Chieftain' is an oval to oblong tuber with red skin and white flesh that matures mid-season.

Solanum tuberosum 'Innovator' is has yellow skin and flesh that are ideal for frying.

Solanum tuberosum 'Prince of Orange' is a gourmet potato with red skin and yellow flesh.

Solanum tuberosum 'Warba' is the classic "new potato" with yellow skin and white flesh maturing within 65-70 days.

Soleirolia soleirolii ‘Aurea’ known as golden baby’s tears has golden evergreen leaves in lush moss-like mats.

Sorbaria sorbifolia 'Cherry on Top' is a false spiraea shrub with beautiful multi-toned foliage and plumes of white flowers.

Sorbaria sorbifolia 'Sem' is a fantastic, super hardy shrub with beautiful young foliage tinged with pink, orange and gold which gradually changes to green when mature.

Speirantha convallarioides resembles lily-of-the-valley in foliage but with short spikes of sweetly fragrant, star-like flowers.

Spirea betulifolia 'Glow Girl' is a cold-hardy, multi-stemmed shrub with white flowers and golden-green foliage.

Spiraea 'Ogon' is a stunning and very hardy deciduous shrub with golden, willowy leaves and pure white flowers in spring.

Stenanthium gramineum or eastern featherbells grass-like leaves topped with a 5 foot tall branching inflorescence of star-like, white, fragrant flowers in late summer.

Strumaria picta is a beautiful candy-cane-coloured species with red and white bell-shaped flowers with a spicy fragrance.

S. truncata White Form has beautiful outward-facing or nodding clusters of white, fragrant, funnel-shaped flowers.

'Pink Chimes' is an unusual and rare pink form of the Japanese snowbell, Styrax japonica.

Styrax obassia, the fragrant snowbell, is a lesser-known relative of the Japanese snowbell, Styrax japonicus.

Symphoricarpos doorenbosii 'Pinky Promise' is an ornamental shrub known as snowberry valued for its late season pink berries.

Symphytum grandiflorum 'Goldsmith' is a neat clump-forming comfrey with light green crinkled leaves edged with yellow.

Syneilesis aconitifolia is a cool foliage plant that looks like a shredded umbrella!

Syneilesis palmata is a rarer species of umbrella plant than the related S. aconitifolia with broader, lighter green foliage that is more lush appearance.

Syringa meyeri Flowerfesta White is a reblooming, dwarf lilac producing larger-than-average white, very fragrant, dense panicles.

Syringa meyeri 'Pearl Potion' is a cold-hardy, compact lilac with pink buds and pure white fragrant flowers.