Increased by seeds, division or cuttings; the last placed under a hand-glass will root freely. Seeds should be sown in spring in a cold-frame. The best time to divide the plant is early spring, or during July and August.
Aretia. See [Androsace].
Argania. Sapotaceæ.
Increased by layers and cuttings. The latter require a propagating-frame. Both should be made in autumn and spring, and in a moderately heated greenhouse.
Argemone. Papaveraceæ.
Increased by seeds, which may be sown out-doors in spring; those of the rarer species in a hot-bed.
Argyreia (Silver-weed). Convolvulaceæ.
Propagated by cuttings, which will do well in sand, with a hand-glass over them, in a little bottom heat.
Argyrochæta. See [Parthenium].
Argyroxyphium. Compositæ.