Spring and summer are typically the best months for propagating a ZZ plant because this is when the plant is actively growing, says Linda Langelo, horticulture specialist at Colorado State University.

Finally, root rot is the primary disease concern with black ZZ plants. It's often caused by over-watering but can also result from bacteria-contaminated soil.

ZZ plants, which are native to Eastern Africa, are the easiest houseplant to own. Here is your guide to water, prune, and propagate ZZ plants.

Dear Jane: What can you tell me about a ZZ plant? I understand it's a new houseplant for use in low-light settings such as my office, where I need something really durable. I've lost several ...

ZZ plants need bright, indirect light and should be rotated occasionally to allow them to maintain a healthy growth all year. If they don’t get enough light they can get leggy and unattractive.

Repot each plant in separate pots and watch as they become well established. Good plants to propagate with root division include peace lilies, ZZ plants, pileas (Chinese money plant) and aloe.

The most common problem indoor gardeners have with ZZ plant is overwatering — its roots prefer to dry out a little between waterings, so take care to water infrequently.

ZZ plants are happy without fertilizer, you can give the plants half-strength fertilizer 1-2 times a year and only when the plant is actively growing.

The branches and leaf arrangement resemble that of a fern frond. It is important to note that the roots are rhizomes, which store water, making the ZZ an easy plant to over-water.