Dill (Arethum graveolens). Umbelliferæ.
Seeds, in early spring.
Dillenia, including Colbertia. Dilleniaceæ.
Seeds, which, however, are grown with much difficulty. Cuttings of half-ripened wood may be placed in sand, under a frame, in bottom heat.
Dimorphotheca. Compositæ.
The seeds of the annual sorts should be sown in heat in spring. The perennials are grown from green cuttings.
Dionæa. Droseraceæ.
Propagated sometimes by seed; usually by dividing the plants.
Dion, Platyzamia. Cycadaceæ.