the plant needs mild temperatures, for this reason in our areas it is best to keep it in the house or in a greenhouse. It is necessary, during the winter period, to winter the plants in temperatures that are around 7-8° C, this to allow them a period of vegetative rest, to induce the plant to a new flowering.
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As almost all succulent plants need little water and cannot stand water stagnation, it is advisable not to wet the plant throughout the winter period.
With the vegetative restart, around April start watering. The administration of specific fertilizers is advisable only from the month of May until the month of August, do not fertilize in the cold months. The Coryphantha should be exposed usually in bright areas and with a good ventilation, in warmer periods the plant can be brought outside in full sun.
The plants are multiplied by removing the small plants that grow at the base of the generating stem, this operation is done in the warmer months, or from seed, the sowing must be done in the spring months.
Pests and diseases
The corifanta is a succulent plant that needs a temperate climate and that needs to grow in a well drained soil. Waterlogging and excessive watering should be completely avoided as they could cause serious damage to the plants. Water stagnation is in fact the first cause of mold and root rot and is a frequent problem when the plants are grown in apartments where temperatures are not very high and therefore the evapotranspiration of the soil is very low.
First of all let’s use a well drained soil as cultivation soil and secondly, let’s not exaggerate with the watering and the quantities of water because too much water could cause serious problems in these plants.
For the rest there are no diseases or parasites to report that are particularly dangerous for these plants, which on the whole do not have great enemies that can undermine their development.
It has a slightly elongated dark green stem and can reach a height of 12 cm. The tubercles are quite pronounced, and in the cracks between one and the other has white lint, at the end of the tuberole is the areola spinosa composed of 10 radial spines and five central, the latter are more resistant. The flowers are very large, deep yellow in colour.
Semi-spherical stem which, when ripe, can reach the 14 cm of size, the tubercles are globular and have on the apex the spinal areola composed of 6-8 radial thorns, in this variety there are no central thorns. The flowering covers almost the entire plant and is yellow to red in colour.
This species can be solitary or in small groups, the stem is slightly cylindrical and can reach up to 15 cm.
The shape of the tubercles is a characteristic of this plant, in fact, have a slightly cylindrical shape that differentiates it from other species, the height of the tubercles rarely reaches the centimeter, the areola of this plant is covered by a down that develops between a tubercule and the other. The flowers are four to five centimeters wide and are white and pink, the flowering period is the summer.
A cylindrical plant, which can reach up to 30 centimetres in height, it has tubercles with rounded apex, not very protruding. In the first years of life the areola is covered with lanugo, from the areola emerge radial and central thorns of dark color, which can reach 1.5 cm in length. In summer the plant blooms, the flower is yellow with reddish stamens inside, the size of the flower barely reach seven centimeters.
Plant that has a globular stem, which can reach 15 cm in size, the color of the tubercles is emerald green, at the end of these is the areola spinosa composed of a group of about twenty radial spines up to one centimeter long, inside there are black spines slightly arched, much more resistant than the radial ones. In summer, the plant produces yellow flowers 7-8 cm wide.
Corifanta – Coryphantha vivipara: Coryphantha sulcata
A plant with stems grouped together, globular in shape, which can reach 10 cm in size.
The tubercles of this variety are about one centimetre long and have at the end an areola formed by 12-15 radial spines and three central spines. In summer, yellow flowers with red streaks appear.