ZZ Plant
Zamioculcas zamiifolia · the Zanzibar Gem
It grows on dry grassland in eastern Africa, storing water in fat underground rhizomes to ride out the dry season. It looks like a glossy jungle plant, but it behaves like a cactus.
Family
Araceae
Origin
East Africa
In the wild
Dry grassland
Indoors
0.6–1.2 m
Growth
Slow
With pets
Toxic
Where it's from
Eastern and southern tropical Africa
Dry grassland
Kenya and Tanzania south to KwaZulu-Natal, on sandy, low-nutrient soils with seasonal drought.
Outdoors: zones 9–10
Frost-free subtropics like Florida and southern California; everywhere colder it lives inside.
Water in the ground
It stores water in fat underground rhizomes to survive the long dry season.
An aroid that acts like a cactus
When droughted, the ZZ switches to CAM photosynthesis, keeping its pores shut through the hot day and taking in CO2 at night. Its leaves are about 91% water, so it can coast for months with no watering at all.
Breathes at night when dry
Under drought it shifts to taking in carbon dioxide after dark, to save water.
Months without water
Leaves around 91% water; it can last roughly four months unwatered in low light.
A potato underground
Each frond rises from a bulbous water-storing rhizome. That hidden store is the whole trick.
How to keep it
LightLow to bright indirect
Bright indirect is ideal, but it tolerates dim rooms for long stretches. No harsh direct sun.
WaterOnly when bone dry
Let the mix dry out completely, then water; about once or twice a month. Soggy soil rots the rhizome.
HumidityDry air is fineTolerates dry indoor air. No misting needed.
TemperatureAbove 15°CWarm and frost-sensitive. Keep it above about 15°C.
SoilGritty cactus mixWell-drained and sandy. It must never stay wet.
FeedingBarelyA balanced feed once or twice in the growing season. It is built for poor soil.
DifficultyNear-indestructibleOne of the best plants for people who kill plants. It thrives on neglect.
With petsToxicCalcium oxalate crystals. Mouth irritation, drooling and vomiting if chewed; usually mild.
PropagationDivision or leaf cuttingsDivision is fast. A single leaflet grows a new rhizome, but takes months.
RepottingEvery ~2 yearsWhen the rhizomes crowd or deform the pot. It does not mind being snug.
What the data says
What it costs
The plain plant is a commodity. One rare mutation of it is a true collector item: a real spread on a single species.
$10–40
Plain green
Common and inexpensive, sold everywhere by size.
$25–60
'Raven'
Near-black foliage, from a natural mutation. A modest premium.
$225–365
Pink-variegated Raven
Dark leaves marbled with pink. A rare, unstable mutation.
$10–40Plain green
$25–60'Raven'
$225–365Pink-variegated Raven
Hover the points. Variegation here is an unstable mutation, which is why the pink Raven stays scarce.
IUCN · Least Concern
In the wild
A calm story: thriving in homes and secure in the wild at the same time.
The ZZ is assessed Least Concern and faces no significant wild threats. It is widespread and drought-hardy across its range, not on CITES, and not invasive. The interesting tension here is biological, not about conservation.
When it sulks
Yellow leaves, mushy stemsOverwatering and rot, by far the most common cause. Back off water and check drainage.
Wrinkled leaflets, leaning stalksThe rare opposite: months without any water.
Brown scorched patchesToo much direct sun. Move it back from the window.
Black spots on stemsUsually normal and healthy on a ZZ, not a disease.
No new growthNormal. It is simply slow, and slower still in low light.
Varieties & company
The varieties
'Raven'ZenziZamicroVariegataPink Raven
Pairs with · keep apart from
Snake PlantCactiPothosFernsCalatheaMonstera
A new plant, every week.
The Data Drop from Sheets Works. New field guides like this one, in your inbox.
