Sphaerolobium

Two species. Green-house evergreen shrubs. Young cuttings. Loam and peat.

Sphaerophysa

Sphaerophysa caspica. Hardy herbaceous perennial. Seeds, common soil; it should be watered sometimes with salted water.

Sphaerotema

Sphaerotema propinquum. Stove evergreen climber. Cuttings. Sandy peat and loam.

Sphaerostigma

Three species. Hardy annuals and biennials. Seeds. Common soil.

Sphagnum

Sphagnum is a white spongy moss, found only in bogs, and used for growing orchidaceous plants, or covering the drainage in flower pots.

Sphenogyne

Ten species. Green-house evergreen shrubs, and green-house and hardy annuals; the latter increase by seeds, the former by cuttings. Loam and peat.

Spider Ophrys

Ophrys aranifera.

Spider Wort

Tradescantia.

Spielmannia

Spielmannia africana. Greenhouse evergreen shrub. Cuttings. Light rich soil.

Spigelia

Spigelia anthelmia, a stove annual, and S. marilandica, a hardy herbaceous perennial. Seeds and cuttings Loam and peat.

Spiraea

Forty-one species and many varieties. Hardy deciduous shrubs or herbaceous perennials, a few are tuberous-rooted. Layers or young cuttings, and the herbaceous species by division. Peat and loam, or common soil.

Spiralepis

Four species. Greenhouse herbaceous perennials. S. squar-rosa, an evergreen shrub. Seeds, cuttings, and division. Sandy peat and loam.

Spiranthera

Spiranthera odoratissima. Stove evergreen shrub. Half ripened cuttings. Sandy loam and peat.

Spiranthes

Four species. Stove green-house and half-hardy orchids. Division. Peat and loam.

Spironema

Spironema fragrans. Stove herbaceous perennial. Division. Light rich loam.

Sponge Tree

Acacia farnesiana.

Sprekelia

Sprekelia cybister and its varieties. Stove bulbous perennials. Offsets. Sandy loam.

Sprengelia

Sprengelia incarnata. Greenhouse evergreen shrub. Cuttings. Sandy peat.

Sprue

Sprue, a market name for the smallest sprouts of asparagus.

Spur

Spur, is a lateral branch cut back, or shortened to a length of about two inches.

Spurge Laurel

Daphne laure-ola.

Spurless Violet

Erpetion.

Squash

Cucurbita mclopepo. See Gourd.

Staavia

Three species. Greenhouse evergreen shrubs. Young cuttings. Sandy peat.

Stachys

Thirty species. Hardy and green-house herbaceous perennials and evergreen shrubs, hardy annuals and biennials. The latter increase by seeds. The perennials by division, and the green-house species by cuttings. Common soil suits them all.

Stachytarpheta

Nine species. Stove or green-house annuals, biennials, herbaceous perennials, and evergreen shrubs. The latter increase by cuttings, the former by seeds. Light rich mould suits them all.

Stackhousia

Stackhousia linarioefolia. Green-house evergreen shrub. S. mono-gyna, hardy herbaceous perennial. Cuttings. Sandy loam and peat.

Stadmannia

Stadmannia australis. Greenhouse evergreen tree. Ripe cuttings, with the leaves on. Loam and peat.

Staff Tree

Celastrus.

Stalagmitis

Seven species. Stove evergreen trees. Cuttings. Turfy loam and peat. They require a strong heat.