Your support is critical to our success.
Origin and Habitat: Garden origin (Nursery produced cultivar)
Cleistocactus sp. f. cristata clone B
Accepted name in llifle Database:
Cleistocactus sp. f. cristata clone A
(Borzicactus sp. "cristatus")
Cleistocactus sp. f. cristata clone C
Description: This is one of the innumerable crested clone of Cleistocactus found in cultivation, most of this cristates are hybrid and have not received any formal name.
Stem: The beautiful crested form, here described, (Clone B) has medium sized fan-like stems and amber soft spines, it can form in age a large convoluted mound and can reach a considerable size (up to 40 cm in diameter, or more).
Areoles: Small roundish, greyish-white felted.
Spines: It has many short bristly amber coloured spines all quite similar in shape, that literally cover the surface of the stems.
Subspecies, varieties, forms and cultivars of plants belonging to the Cleistocactus sp. Crested clones Group
- Cleistocactus sp. f. cristata clone A: (Borzicactus sp. “f.ma cristata”)”) has large growing green fan-like stems with short bristly but firm pale-creamy spines all quite similar in shape.
- Cleistocactus sp. f. cristata clone B: has medium sized stems densely covered by ginger coloured soft spines..
- Cleistocactus sp. f. cristata clone C: has medium sized fan-like stems and creamy yellow bristly spines all quite similar in shape, that literally cover the surface of the stems.
Cleistocactus sp. f. cristata clone B Photo by: Cactus Art
The gallery now contains thousands of pictures, however it is possible to do even more. We are, of course, seeking photos of species not yet shown in the gallery but not only that, we are also looking for better pictures than those already present. Read More...
Cultivation and Propagation: It is not too difficult in a greenhouse, although grows quite slowly. It is usually seen as a grafted plant but can grow on its own roots too.
Soil: Use a mineral well permeable soil with little organic matter (peat, humus).
Exposure: They need a good amount of light shade to full sun this help to keep the plants healthy, although slow growth.
Watering: Water sparingly from March till October (weekly during summertime, if the weather is sunny enough), with a little fertilizer added. Less or no water during cold winter months, or when night temperatures remain below 10° to prevent root loss. It is sensitive to overwatering (rot prone).
Fertilization: Feeding may not be necessary at all if the compost is fresh then, feed in summer only if the plant hasn't been repotted recently. Do not feed the plants from September onwards as this can cause lush growth which can be fatal during the darker cold months.
Hardiness: Keep perfectly dry in winter at temperatures from 5 to 15 degrees centigrade. (but it is relatively cold resistant and hardy to -5° C, or possibly colder for short periods) In the rest period no high atmospheric humidity!! (Temperature Zone: USDA 9-11)
Crested growth: Unlike 'monstrose' varieties of plants, where the variation from normal growth is due to genetic mutation, crested growth can occur on normal plants. Sometimes it's due to variances in light intensity, or damage, but generally the causes are unknown. A crested plant may have some areas growing normally, and a cresting plant that looks like a brain, may revert to normal growth for no apparent reason. If you have any of the crested part left you need to remove the normal growth and leave the crested part behind this will need to be done regularly.
Propagation: Grafting or cuttings. Plants are usually grafted onto column-shaped cacti but proved to be able to produce their own roots if degrafted. Cuttings will take root in a minimum temperature of 20° C (but better in hot weather). Cuttings of healthy shoots can be taken in the spring and summer. Cut the stem with a sharp, sterile knife, leave the cutting in a warm, dry place for a week or weeks (depending on how thick the cutting is) until a callus forms over the wound. Once the callus forms, the cutting may be inserted in a container filled with firmed cactus potting mix topped with a surface layer of coarse grit. They should be placed in the coarse grit only; this prevents the cut end from becoming too wet and allows the roots to penetrate the rich compost underneath. The cuttings should root in 2 to 6 weeks. Large crested piece must be placed on the soil surface without burying the plant base down in the soil.
|Back to Cleistocactus index|
|Back to Cactaceae index|
|Back to Cacti Encyclopedia index|