Begonia originated in the rain forest in South America. The name ‘begonia’ comes from Michel Begon (1638-1710) an amateur French botanist who first collected
them. These flowers are grown from tuberous roots. New growth buds appear on the base of the old stem, at the point where it joins the tuberous root. Begonia like cool, moist, lightly shaded places where the soil is rich and well supplied with humus.Flower heads have one large double male flower in the center, with two single female flowers at the sides. Flowering is stimulated by long day lengths, common during the summer in Alaska.
Selasa, 13 Mei 2008
Dahlia (Compositae)
Dahlia are an important group of tuberous-
rooted plants of the family Compositae
(sunflower family). The forms used in gardens today originated from Mexico, Guatemala and Central America. The Spanish travelers brought a handful of tubers back to Madrid in the late 18th century.
The Swedish botanist Andreas Dahl, named them. In 1826, English plantsmen had hybridized nearly 60 kinds. Today there are over 1700 recognized varieties.
Dahlia are among plants that have evolved underground tuberous roots to store food and survive through adverse conditions. The first year a dahlia plant is grown from a seed, it will develop a branched tuberous root system that can be easily overwintered in cool storage.
The tuberous root can be replanted whole or split, making several plants. Each one of the tuberous roots attached to part of the stem will produce buds, from which new plants can grow. The buds will be formed at stem end or where the old stem was.
Dahlia thrive best in well-drained soil. They like plenty of water after beginning to bloom, but like roses and peonies, seem to resent “wet feet
rooted plants of the family Compositae
(sunflower family). The forms used in gardens today originated from Mexico, Guatemala and Central America. The Spanish travelers brought a handful of tubers back to Madrid in the late 18th century.
The Swedish botanist Andreas Dahl, named them. In 1826, English plantsmen had hybridized nearly 60 kinds. Today there are over 1700 recognized varieties.
Dahlia are among plants that have evolved underground tuberous roots to store food and survive through adverse conditions. The first year a dahlia plant is grown from a seed, it will develop a branched tuberous root system that can be easily overwintered in cool storage.
The tuberous root can be replanted whole or split, making several plants. Each one of the tuberous roots attached to part of the stem will produce buds, from which new plants can grow. The buds will be formed at stem end or where the old stem was.
Dahlia thrive best in well-drained soil. They like plenty of water after beginning to bloom, but like roses and peonies, seem to resent “wet feet
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