Fat plants

Pachycereus pringlei


GeneralitŠ°


genus that includes 10-12 species of columnar cacti originating in Central America. They are very long-lived and the centenarian specimens, in nature, can reach remarkable dimensions, even close to the twenty meters of height, even if the growth is very slow. The stem is dark green, sometimes bluish or grayish; they have 10-15 ribs, covered by areolas that carry numerous gray spines; with age they tend to branch very much, assuming the appearance of a "bush", while young specimens usually have a single stem. In late spring they produce numerous white or green flowers, followed by fleshy fruits covered with thorns; in the reddish or pinkish pulp there are numerous small black seeds. Over the years the plants tend to lose their spines and signify the lower part of the trunk. The most widespread species is P. pringlei.

Exposure




the best position to grow a Pachycereus and certainly full sun, even if the plant does not present problems even in slightly shaded positions for some hours of the day. It fears the cold, so in winter it should be kept indoors or in a cold greenhouse, or in any case in places where the temperature does not fall below 7-10 ° C. Very large specimens can withstand short periods of frost.

Watering


from March to October water sporadically, allowing the soil to dry out perfectly between one watering and another. In winter, avoid watering, especially if the plant is kept at low temperatures. In the vegetative period, provide potassium-rich fertilizer every 25-30 days, dissolved in the water used for watering.

Other tips


Soil: prefers rich, deep and loose soils, many well drained. Use universal soil mixed with sand and lapillus. These plants develop a fairly extensive root system, and often reach a considerable weight, they must therefore be kept in rather large vessels, repotting them each year.
Multiplication: by seed, using fresh seeds; before sowing them it is good to pass them gently with very fine-grained sandpaper, to favor germination; the seedbed must be kept in a shady and damp place, but very hot.
Pests and diseases: cochineal can cause damage of variable entity.

Pachycereus pringlei: Other tips


Soil: prefers rich, deep and loose soils, many well drained. Use universal soil mixed with sand and lapillus. These plants develop a fairly extensive root system, and often reach a considerable weight, they must therefore be kept in rather large vessels, repotting them each year.
Multiplication: by seed, using fresh seeds; before sowing them it is good to pass them gently with very fine-grained sandpaper, to favor germination; the seedbed must be kept in a shady and damp place, but very hot.
Pests and diseases: cochineal can cause damage of variable entity.