cactus-food

Cactus Food on Your Breakfast Table

Everybody knows that cactuses are prickly. However, the fact that they are also an important source of food is far less popular. Stems, fruits and seeds of cactus have been have been More »

fear-and-loathing-cactus

Psychedelic Cactus Adventure

We are human beings and, as the Eden’s incident proves it, it’s typical for all of us to cherish a desire for something forbidden and adventurous within. How about growing a plant More »

mountain-cacti-big

Mountain cacti

Have you ever been to or have you ever seen the pictures of the Andes or the Cordilleras? These are the places of such cactus types as astrophytum, cleistocactus, echinopsis, lobivia, notocactus, More »

Prickly-pear-cactus

Did you know these prickly things?

We all got used to cactuses as original and beautiful houseplants. So when we hear the word “cactus” we usually think of those natty prickly green things in small pots on our More »

saguaro-cactus

Taking care of saguaro cactus

When you hear the word “saguaro” you probably imagine a large, tree-sized cactus with a mighty ribbed stalk that grows in the Caribbee coastwise. I also once thought that all representatives of More »

Tag Archives: desert cacti

Mountain cacti

Have you ever been to or have you ever seen the pictures of the Andes or the Cordilleras? These are the places of such cactus types as astrophytum, cleistocactus, echinopsis, lobivia, notocactus, oreocereus, rebutia and others. Naked, forbidding rocks rise above stony gorges, and huge woolly blooming cereuses grow on these rocky walls. It seems incredible, as you can never tell what they cling to and how they survive: at a daytime they are scorched by the bright and merciless sun, at night they freeze in the cold mountain air. These types of cactus would die, if they had no means of protection as attire of fuzz, prickles and setae. The dense woolly cover protects the green stalk from sunburns and supercooling.

Types of cactus: Rebutia sp. uebelmannMountain cacti – pillar-shaped oreocereus and spherical lobivia – suffer from the lack of the sunlight even more than desert cacti. They quickly start “to grow bald”, losing dense prickles and fuzz. They can frequently perish from rotting of the stalk. Damp humus soil is especially baneful for these types of cactus. The dwarf rebutia growing on mountain meadows and in intermountain troughs endures it much better. Many of these cactuses are dressed in a proofing of white or golden setae.

If you keep these cactus types dry and cold (3-5 °) in winter and give them enough sunlight in summer, they will excellently grow and blossom already at the age of two years.

Desert cacti

Speaking about desert cactus species we can name the following: ariocarpus, carnegiea, cephalocereus, cephaloceus, echinocactus, ferocactus, opuntia, and some others.

Types of cactus: Echinocereus subirnemisWhen we hear the word “desert” we usually imagine Sahara or Kara-Kum with their scorching sand-dunes devoid of any vegetation. But the soil of stony deserts of Central and South America is very rich in all necessary salts for cacti. Though its contains very little amount of humus, water dissolves salts and the plant can absorb them.

But if rains are extremely rare here, where does water comes from? Plentiful dews, falling at night and flowing down between ribs of cacti, the night fogs accumulating on prickly stalks – this is a poor water diet of desert types of cactus growing in Mexico, Peru, and Ecuador.

Roots of many cacti of these places are radish-shaped and are capable to save water within, or ramify widely near the surface. To reduce moisture evaporation, cacti aspire to curtail the area of the stalk surface. That’s why they have either spherical or a short cylindrical form.

Desert cactus types are not afraid of burning sun: some of them have thick and dense thin skin, which becomes flat and “hides” in the ground for the period of droughts; some have high sharp ribs causing shade; others are covered with dense prickles or setae, looking like a brush.

For their correct development desert types of cactus require much sun, soil containing little humus and careful watering. They can easily die because of water stagnation in the ground even during summer heat.