Seeds, sown in fall or spring, and which usually germinate better if soaked in hot water previous to sowing. Also grown from layers and root-cuttings. Named varieties are grafted or budded, the common locust stock (R. Pseudacacia) being preferred, even for the rose acacia (R. hispida).
Rocambole (Allium Scorodoprasum). Liliaceæ.
“Cloves,” or divisions of the bulb.
Rocket, ornamental sorts. See [Hesperis].
Rocket Salad (Eruca sativa). Cruciferæ.
Seeds, sown where the plants are to grow.
Rock-Rose. See [Cistus].
Romneya. Papaveraceæ.
Propagated by seeds in spring.
Romulea. Irideæ.