stenocereus are a few dozen succulent plants native to Mexico. They usually grow gathered in dense groups, at first erect, then falling back with age; some species, such as S. pruinosus, are instead erect, poorly or not at all branched; S. chrysocarpus has erect, very branched stems, which also reach 3m in height. Generally the stems are long and narrow, dark green, covered with large greyish thorns; in summer they produce numerous delicately scented flowers, of a pure white color, which open at night. In late summer many species produce large roundish, fleshy, edible fruits. S. eburneus has a gray stem, which becomes brownish-purple with the first cold. S. eruca has very prostrate, creeping stems, when they touch the ground they root and the old plant dies. S. gummosus has long erect stems, which stretch themselves prostrate to touch the ground, where they root, branching abundantly.
Exhibition: these cacti, like many others, prefer very sunny locations. They fear the cold and therefore in winter they must be withdrawn in a temperate place, even if they can occasionally bear short frosts. Watering: for the whole vegetative period, from March to October, they need abundant watering, but only when the ground is very dry. With the arrival of autumn thin out the waterings, until they are suspended almost completely for the winter. In spring and summer provide fertilizer for succulent plants dissolved in water for 10-15 days.
Stenocereus: Useful information
Soil: stenocereus need very well drained soil, an ideal substrate can be prepared by mixing common universal soil with sand and perlite, taking care to prepare lapillus or expanded clay on the bottom of the pots. Multiplication: in spring it is possible to sow the seeds extracted from the fruits of the previous year. In summer it is possible to practice apical cuttings, although often we proceed by detaching from the mother plant the ramifications that they have already rooted, therefore placing them in a single container.