It is native to Mount Kinabalu and
nearby Mount Tambuyukon in Malaysia. Originally, it was restricted
to this area but because of progress in ‘Plant Tissue Culture’
it is now possible to grow these plants away from their native lands.
Plant Tissue Culture (micropropagation)
is a process of separating living tissue or cells from the parent
and growing them on their own. This can be done by placing them
in a liquid or on a solid culture form. More information on this
technique can be found here.
About Nepenthes Rajah
Nepenthes Rajah is a very much sought
after species due to its rarity, the shape of its pitchers and the
size of which they grow; the pitchers are said to grow up to 18
by 35 cm although this usually takes many years. It is one of the
more slow growing pitcher plants and was once very difficult to
propagate.
Nepenthes
Rajah is also a climber and will do so if it finds something suitable
which can hold it. It is also worth noting that they have been known
to grow up to twenty feet high though it is very rare.
Because of this Nepenthes Rajah produces
two types of pitchers; these being upper and lower pitchers. The
lower pitchers are more common and will lie on the ground. Their
diet in N.Rajah’s natural environment is made up of insects,
mostly ants, and certain species of arthropods. The pitchers have
also been known to trap lizards, birds and even small mammals.
The upper pitchers will be produced
by older plants and are a lot smaller than their lower counterparts.
They will attract airborne types of prey including similar things
to the lower pitchers.
Environment
Nepenthes Rajah grows best in moist
compost but does not like to sit in water as the roots of the plant
will rot. The specimen at Growing Matters Garden Centre is in a
hanging basket. It is actually a lot bigger than the plant itself,
however, this will avoid having to re-pot it later and will avoid
hazards such as ‘Transplant Shock.’
Watering
This plant needs regular watering
and as such we have set up a watering system which will allow us
to do that without having to be there all the time. It is a system
similar to what we have been using on our tomato plants.
What we have done is placed a bucket
higher than the basket and then laid a thin strip of carpet liner
from the bucket; the liner being held down with a brick. The other
end has been hung over the plant using a length of wire.
The water level checked every few
days with a dibber to see if it needs refilling as it is too high
to reach without climbing onto the staging. The bucket has been
secured in place to prevent any accidental spilling. As with all
our other carnivores, rainwater has to be used and this system ensures
that the plant is constantly wet. There is also a spray bottle nearby
to give the plant an overall shower every now and again.
Growing
Matters bought its specimen of Nepenthes Rajah in June 2007 and,
so far, it is doing well.