Firm base with satellites
ZZ plant's hardiness comes from its root system. It has quite an unusual way of growing for a houseplant. Under the soil there is a sizeable, thick tuber which can reach a diameter of twenty centimetres. After a while a host of small tubers are added. Thick roots emerge from the top of the primary tuber.
They’re so strong that they can break a pot if it’s too small, but don’t be tempted to place it in a mega-pot. That contains a lot of earth which retains a lot of moisture, which is the one thing the plant can’t cope with.
Self-sufficient reservoir
ZZ plants largely regulate their own water supply. For that reason literally everything about the plant is thick: the tuber, the roots, the stems and the leaves. It makes the whole plant one large storage reservoir for water and nutrients. You can see that from the rootball: a big bundle of energy. This energy is obvious in what emerges above the soil: strength, a primeval appearance and calm. Just what you need in order to reboot.
