Propagated sometimes by seeds sown in heat, or by divisions of the root-stocks.
Spearmint (Mentha viridis). Labiatæ.
Commonly grown from cuttings of the creeping root-stocks.
Speedwell. See [Veronica].
Sphæralcea, Sphæroma (Globe Mallow). Malvaceæ.
Seeds; by cuttings of the young growth under glass, and kept shaded until rooted.
Spiderwort. See [Tradescantia].
Spinage (Spinacia oleracea). Chenopodiaceæ.
Seeds, sown usually where the crop is to stand, either in fall or spring.