Cactus: how to grow
The first step towards growing a healthy plant is to buy really healthy plant. Do not buy plants with damaged spines, clear signs of bruising, or cacti with lopsided or uneven growth. You should also remember that even in ideal growing conditions, the spindly growth produced in a dimly-lit store will never became broader out to normal size. The best choice is to buy a cactus in the greenhouse where it was initially grown, or right after it has been delivered to a retail shop.
Care for particular type of cactus depends on the climatic conditions where that plant would be growing in nature. The first rule for successful growing of any plant is to provide conditions that are as close as possible to the natural environment.
Usually, cacti are divided into 2 most common classes: sun-loving and shade-loving. The soil composed of equal parts of coarse sand, peat and perlite is suitable for growing of almost all cacti. Vertical plants should be planted in pots in diameter 1/2 the height of the plant. Be attentive to avoid developing rot on recently potted or transplanted plants. Make sure the pot is dry before transplanting, and transplant into dry soil. And wait at least a week before watering to allow damaged roots to recover.