This section is from the book "The Gardener's Monthly And Horticulturist V21", by Thomas Meehan. See also: Four-Season Harvest: Organic Vegetables from Your Home Garden All Year Long.
"The most popular method of propagating the Cineraria is from seeds. Sow in May or June in light soil; when the small plants are large enough to handle, prick them out about six or nine in a four-inch pot, and when these have grown so that the leaves touch each other, re-pot them simply in small pots, and treat them as previously directed for named sorts. Seedlings generally grow more strongly than named varieties. They are less dfficult to propagate, and for general decorative purposes they answer equally well. Seeds from a good strain should be obtained to start with. The insect pests are principally greenfly and thrips, but red spider will also attack the leaves. Fumigate with tobacco smoke to destroy the two first; the other will seldom appear if the best attention is given to the plants. Keep the plants close to the glass during the whole period of their growth. Avoid a dry atmosphere, and see that they do not suffer for want of water at the roots.