A closer look at the roots of Nepenthes

Having looked at the flowers up above, let’s now turn our attention to what’s happening underground! First of all, it’s worth noting that Nepenthes’ roots are naturally black from end to end… which may come as a surprise. During the first few months of a Nepenthes’ life, the main root, known as the taproot, grows deep into the soil to stabilise the young plant. It rapidly develops numerous branches until it forms a dense root system, far denser than that of smaller carnivorous plants.

As the plant matures, the branches of the primary root thicken and branch out themselves: there is no longer a taproot, and the root system is described as fasciculated. At this stage, a significant volume of soil has been colonised. It is then that the roots may start to twine around the sides of the pot if it is too small… Repotting is essential!

The photograph shows a branch of the taproot, which is itself beginning to branch out. The root system is becoming fasciculated.