Hence, they are ideal plants to be kept in bedrooms to freshen up the
air at night.
If the cactus plant is to thrive and prosper, the size of the pot in
which it is grown has to be carefully monitored. The pot should always
be a little smaller than the plant itself because it is only when the
plant has to struggle to survive that it will thrive. If the pot is too
spacious the struggle element is removed and the chances are that the
cactus will die. Cacti are like human beings. When they suffer they
will grow. Similarly if a cactus shows no signs of growth, stop the
watering. It should be resumed only when the plant resumes growth.
The substrata of a cactus pot is ideally composed of pieces of broken
bricks at the bottom, charcoal above it, then coarse sand and pebbles
above it. Leaf mould is the best manure.
Grafting of cacti is very simple. A very small piece of the cactus
plant should be stuck with cellotape to the plant that needs grafting.
The smaller the piece the easier it is to graft. To reproduce cacti,
one has to simply cut off a piece of the cactus, allow it to dry for a
few days and then just place it over the cacti substrate. It will
automatically develop roots.
To differentiate between cacti and other plants that look like cacti is
very easy. All cacti have fine hair at the base of each thorn.
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