Perennial that can be aquatic. Stems are square and straight and produce lance-shaped, wrinkled, toothed leaves. Panicle-like, yellowish green flowers are borne in cymes from early summer to early fall. Fragrance emitted may be malodorous. Also known as Scrophularia auriculata.
Scolopendrium vulgare ( Hart’s Tongue Fern )
Evergreen fern with creeping rhizomes. Fronds are bright green, leathery, shiny, and resemble badminton birdies. The bases of the fronds are heart-shaped with wavy margins. Also known as Asplenium scolopendrium, or Phyllitis scolopendrium.
Scoliopus bigelovii ( Stink Pod )
Perennial that is compact and herbaceous. Leaves are broad and oval, boldly veined, and dark green with purple splotches. Umbels of flowers that look like trilliums are upright, and have dark purple inner tepals and greenish white outer tepals with […]
Scirpus holoschoenus ( Round-Headed Club-Rush )
Perennial that is tufted and rounded with upright, medium green stems that turn orange to brown in fall. Occasionally, leaves are linear and basal. Umbels of round flower heads made up of brown spikelets on long stalks are produced from […]
Scirpoides holoschoenus ( Round-Headed Club-Rush )
Perennial that is tufted and rounded with upright, medium green stems that turn orange to brown in fall. Occasionally, leaves are linear and basal. Umbels of round flower heads made up of brown spikelets on long stalks are produced from […]
Scilla tubergeniana ( Scilla )
Dwarf bulbous perennial with lance-shaped, basal leaves borne in late winter or early spring. At the same time, racemes of star-shaped, silvery blue flowers bloom. Good for naturalizing. Also known as Scilla mischtschenkoana.
Scilla siberica ( White Spring Squill )
Bulbous perennial with 2 to 4 linear, basal leaves. Loose racemes of pendent, bowl-shaped white flowers bloom in spring. Good for naturalizing in garden.
Scilla siberica ( Atrocoerulea Star Hyacinth )
Bulbous perennial with 2 to 4 linear, basal leaves. Loose racemes of pendent, bowl-shaped bright blue flowers bloom in spring. Good for naturalizing in garden. Also known as Scilla siberica Spring Beauty.
Scilla pratensis ( Scilla )
Bulbous perennial that is clump-forming in habit. Leaves are linear, basal and reach 6 to 12 inches long in early summer. At the same time, racemes of star-shaped, light blue to lilac flowers bloom. Good for naturalizing. Also known as […]
Scilla nutans ( English Bluebell )
Bulbous perennial that is clump-forming and spreading. Leaves are linear, shiny, dark green and reach 8 to 18 inches long. Racemes of narrow, bell-shaped, fragrant, medium blue or white flowers bloom in spring. Remove spent flowers to prevent self-seeding. Also […]