Stokesia laevis ( Silver Moon )

Silver Moon is a tough, evergreen perennial, to 18 inches wide, with lance-shaped, basal leaves and silvery-white, Aster-like, large flowerheads held terminally on upright stems, up to 24 inches tall. Long lasting, they attract butterflies and make great cut flowers. […]

Stokesia laevis ( Blue Danube )

Blue Danube is a tough, evergreen perennial, to 18 inches wide, with lance-shaped, basal leaves and medium blue, Aster-like, very large flowerheads held terminally on upright stems, up to 16 inches tall. Long lasting, they attract butterflies and make great […]

Stipa splendens ( Needle Grass )

Deciduous perennial grass with tufted and mounding habit. Leaves are arching, linear, and dark green. Panicles of purple with white spikelets are produced in early and mid-summer.

Stipa gigantea ( Golden oats )

Evergreen or semi-evergreen perennial with a tufted habit with clumps of arching, linear, leaves. Panicles of purple-green or silvery spikelets that turn gold are produced in summer.

Stipa arundinacea ( Pheasant’s Tail Grass )

Rhizomatous, evergreen perennial with a tufted habit. Leaves are arching, linear, leathery, and dark green with orange-brown stripes in summer turning completely orange-brown in winter. Pendent panicles of purple-green spikelets are produced from mid-summer to early fall.

Stewartia pseudocamellia ( Japanese Stewartia )

This is a broadly columnar, deciduous tree has peeling, red-brown to grey bark. Dark green leaves are ovate to elliptic, toothed to 4 inches long. Leaves turn orange, yellow, and red in autumn. In mid-summer, single, camellia-like, white flowers with […]

Stewartia monadelpha ( Tall Stewartia )

Stewartia monadelpha is a large shrub to small tree with a rounded shrubby habit. Foliage is dark green with excellent maroon fall color. Bark is cinnamon-brown and smooth in maturity, scaly rich brown in younger specimens. It is heat tolerant, […]

Stewartia koreana ( Korean Stewartia )

Stewartia koreana is a small tree, pyramidical, with a dense growth habit. Dark green foliage can have beautiful red to reddish purple foliage in fall. Flowers are large, 3 inches across, white with yellow stamens, bloom sporadically over entire summer. […]

Sternbergia macrantha ( Autumn Daffodil )

Bulbous perennial that bears yellow funnel-shaped flowers in the fall. Blooms appear before the grayish green foliage emerges. Ideal for a sunny rock garden; does not like winter moisture. Sometimes referred to as Sternbergia clusiana.

Sternbergia fischeriana ( Autumn Daffodil )

Bulbous perennial that bears light yellow goblet-shaped flowers in winter. Leaves are shiny, dark grayish green, and strap-shaped. Sometimes produces small, non-flowering bulbs. Ideal for a sunny rock garden; does not like winter moisture.