After about three years, the plants would have formed large bushes, and the rhizomes can be seperated into many plants. The plants also grow from seeds, but then grow much slower.
Selection and cultivation in especially Holland and Israel resulted in many hybrids with larger flower-heads, double forms and a great variety of colours.
The flowers generally have yellow disc-florets, although some of the hybrids have dark disc-florets.
Gerberas are excellent cut-flowers and will last up to ten days in a vase, if the water is replaced daily.
Another very common species is Gerbera viridifolia. Distribution occurs in grassland and open woodland from the four northern provinces of South Africa through Swaziland, the Free State, KwaZulu-Natal and Lesotho to the Eastern Cape. The flowers are generally yellow, white or a variety of pink colours.
Distribution occurs in the sandy, well-drained soils of the grasslands in the Northern Province and Mpumalanga. However, this perennial herb can be grown successfully in any garden (even rockeries).
The plants are propagated from rhizomes and need lots of sun, but very little water. They don't get any pests or diseases and flower nearly the whole year round, except in winter when they disappear completely.
Across the world, also here in South Africa, masses of Gerberas are grown in tunnels. These plants can, however, not be planted in gardens, and should be treated as indoor pot plants.
Reference: Wild Flowers of Northern South Africa, with drawings by Anita Fabian and text by Gerrit Germishuizen, Fernwood Press, 1997.