The Gerbera, also known as the Barberton or Transvaal Daisy, is a native of South Africa. Under cool greenhouse treatment it may be grown to perfection in pots, and a charming display of bloom can also be obtained in the open border from plants put out in a well-drained sunny position and given slight protection in winter. The flowers somewhat resemble a Marguerite in form, having a number of long pointed petals radiating from a small centre. In addition to the brilliant G. Jamesonii, sometimes called the Scarlet Daisy of the Cape, many hybrid flowers having a wide range of delightful colours are also available. Although seed is often sown in spring, the best results are probably obtained from an August sowing, in pans placed in a gentle heat. Prick off the seedlings when large enough, and if required for the greenhouse or conservatory transfer to pots, or gradually harden off for planting in the open as soon as weather permits in the following spring.
GESNERA
Nægelia. Tender perennial
An extremely beautiful ornament for stove or conservatory. The new hybrids freely produce spikes of bright pendulous flowers of many charming colours. Although the Gesnera is a perennial, it is sound practice to treat the plant as an annual. Seedlings from a January sowing will commence flowering in about nine months. Very rich soil, a warm and even temperature, and plenty of water, are requisite to promote luxuriant growth. The culture advised for Gloxinias will exactly suit the Gesnera also.
Hardy perennial
The introduction of the well-known double variety, Mrs. Bradshaw, which may easily be flowered from seed in the first season, has brought the Geum into prominence in recent years. Seed of the above-named variety should be sown in pans in March or April and the seedlings pricked off into boxes of rich soil when large enough. Put out in May or June and do not let the plants suffer for want of water. Geums may also be raised from sowings made in June or July, and transplanting in due course to permanent quarters, in the manner usual with hardy perennials.
GLADIOLUS
Corn Flag. Half-hardy perennial
Formerly the Gladiolus was seldom raised from seed, probably because the seed obtainable was not worth sowing. Now it is saved with so much care that it will give a splendid display of flowers, a large proportion of which will be equal to named sorts, and some may show a decided advance.