Cleistocactus baumannii

May 8, 2018 0 Commentsadmin

The stem is erect at first, later – due to its great length it is prostrate – branching at the base. The shoots are bright green, up to 200 cm (78 inch) long and 2 to 3.5 cm (0.8-1.5 inch) across. The ribs, 12 to 16, are rounded and divided by deep grooves. The areoles are elliptic, 2 to 3 mm long, covered wit short wool and several longer hairs. The spines, 15 to 20 are stiff and sharp, the lower are the shortest. The flowers are zygomorphic, 6 to 7 cm long, orange to fiery-red. The flower tube is narrow and S-shaped with a slantin, approximately 1 cm high mouth. The filaments are red, the anthers and stigma yellow to brownish. Before and after flowering the stigma and stamens are drawn inside the blossom. The fruit is round, about 1.5 cm across and red.

Cleistocactus baumannii pavispinus is also a popular cereus and no collection should be without it if space permits. Greenhouses or glassed porches are best for cultivation of the shrubs which produce side shoots freely. The vermilion, zygomorphic flowers occur on the top part of the plant throughout the whole summer. In favourable conditions flowers occur on shoots when they are abou 30 cm high.

Known synonyms:
Known common (English) plant names:
Natural habitat:
Argentina, Paraguay, Uruguay and south-east Bolivia.
Maximum plant height or length:
– In centimeters:
200 centimeter(s)
– In inches:
78 inch(es)
Maximum plant width or diameter:
– In centimeters:
3.6 centimeter(s)
– In inches:
– 1.5 inch(es)
Minimum temperature:
– In degrees Celsius (°C):
8 °C
– In degrees Fahrenheit (°F):
45 °F
Estimated age when fullgrown:
Estimated age of first flowering:
Flowers appear in / from… :
Summer
Duration of a flower:
2-3 day(s)
Flowers primary color:
Red
Ideal sun exposure:
Full sun or sunny

Cultivation description:
This cactus is grown in rich soil with adequate water in full sunlight. In winter water is withheld and the temperature is maintained at 8-10°C (45-48°F). It is generally propagated from the seed or from 10 to 30 cm-high shoot which after they are dry are planted in pots in soil rich in humus and cared for like the mature plant.
References:
The complete book of cacti & succulents, Terry Hewitt, ASIN B01FELY6WM
Cacti and Succulents, Paul Hamlyn, ASIN – B001MEF9V8


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