Plant Search » List of Hardy Subtropical Plants
Salvia madrensis 'Red Neck Girl' has maroon stems that are adorned later in the season with a compliment of yellow flowers.
Sasa kurilensis 'Shimofuri' has long, variegated foliage up to 10x2" long and wide with thin white parallel stripes.
Sauromatum giganteum is a weird aroid with large, 1 foot long, arrow-shaped leaves and burgundy spathes with burgundy-black spadices.
Sauromatum venosum is a weird, otherworldly looking aroid with a 3' tall inflorescence speckled deep purple and yellow.
Schefflera delavayi is a lush and tropical but totally hardy shrub or small tree at the cutting edge of woody horticulture.
Sedeveria 'Pink Ruby' is a colony-forming succulent with small, green, pointed, red-tipped leaves that flush with orange-red.
Senecio mandraliscae is a spreading succulent with long blue gray pencil-like fleshy leaves and small white flowers.
Senecio peregrinus or String-of-Dolphins is grown for its foliage that resembles a pod of jumping dolphins. White flowers in spring,
Senecio rowleyanus or string-of-pearls is a trailing succulent with spherical, succulent leaves resembling a pearl necklace.
Senecio rowleyanus 'Variegata' is the variegated string of pearls or "VSOP". It is a very rare variegated form with leaves variably marked with white and ivory.
Senecio serpens is a spreading succulent with long, blue gray, pencil-like, fleshy leaves and small white flowers.
Lush and tropical purple foliage hardy to zone 7!
Sinningia is a genus related to Gloxinia and African violets. 'Invasion Force' is has lovely pink, fragrant, tubular flowers atop felted foliage.
Sprekelia formosissima has bold scarlet flowers with gracefully arching petals and strap like green foliage.
Syneilesis palmata is a rarer species of umbrella plant than the related S. aconitifolia with broader, lighter green foliage that is more lush appearance.