Zamioculcas zamiifolia
Family: Araceae

Native Region
Eastern Africa (Kenya, Tanzania, Mozambique)
The secret of ZZ Plant sits under the soil. Thick rhizomes store water, so the plant can stay firm long after a normal houseplant would wilt.
That strength also creates the main failure. If you water on a weekly schedule, the rhizomes can rot before the leaves warn you.
Dry soil is safer than wet rhizomes. When in doubt, wait.
This page is different from Raven ZZ Plant. Classic ZZ Plant is about green structure and neglect tolerance, not the black-leaf color change.
A firm plant that has not grown is not failing. It may simply be using stored water while the room gives it little reason to push new stems.
Most people should choose the plain green plant if they want faster fill. Dark cultivars are beautiful, but they grow slower and cost more.
If the goal is upright low-water leaves with a sharper shape, Snake Plant is the closer comparison.
ZZ Plant handles very low to bright indirect light better than most houseplants, including office corners and fluorescent rooms. Low light keeps it alive, but it slows new stems.
Bright indirect light gives fuller growth as long as the plant stays out of harsh direct sun. Scorched leaflets do not recover.
If the plant has not grown for months but still looks firm, it may simply be holding in low light. Do not force growth with water.
For a softer low-light plant that is pet-safe, Parlor Palm is a better fit.
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When the mix is dry deep in the pot, water fully and let everything drain. Then wait until the pot dries again.
Yellow lower leaflets usually mean the plant stayed wet too long. A dry plant tends to wrinkle or stall before it yellows.
If you like low water but want a trailing plant, String of Bananas needs brighter light and a faster pot.
The hard part is doing nothing after a good soak. Rechecking the pot is useful; adding a little more water is not.

Use a loose indoor mix with perlite or bark. The pot should drain fast enough that the rhizomes never sit wet for days.
A snug pot is fine because ZZ Plant grows slowly. Repot only when rhizomes crowd the pot, distort the sides, or push the plant upward.
This is not the same soil problem as Peace Lily. ZZ Plant does not want evenly damp soil.
A deep decorative pot can hide wet soil around the rhizomes long after the surface looks dry.
Division is the practical method. Separate a clump with rhizomes and roots, then pot it dry enough to heal.
Leaf cuttings work, but they are slow. A leaf may sit for months while it builds a tiny rhizome before you see a new shoot.
For faster node cuttings, Pothos is a better beginner propagation plant.
If you want visible propagation progress, choose Spider Plant instead. ZZ Plant teaches patience.
Pests are possible, but wet rot is the common problem. Soft stems, sour soil, or yellowing with a heavy pot point below the soil.
Dust can make glossy leaves look dull. Wipe leaves first, then inspect for scale or mealybugs along the stems.
If sticky pests appear on nearby glossy plants like Rubber Plant, check ZZ Plant during the same pass.
A ZZ Plant in winter may do almost nothing. That is normal if stems stay firm and the pot dries slowly.
Skip fertilizer in low light and stretch the watering interval. The plant is living on stored water, not asking for a push.
Move it only if the room gets cold. Warmth protects the rhizomes better than extra care.
Do not repot in a slow winter unless the pot is cracked or rot forces the issue. A quiet plant is often a healthy plant.
ZZ Plant is not pet-safe because it contains calcium oxalate crystals. Keep it away from pets that chew leaves.
For a pet-safe low-light plant, Cast Iron Plant is slower but safer. For a pet-safe plant that makes babies, Spider Plant is better.
Use a stable pot. The stems are stiff, and a top-heavy plant can tip when someone brushes past it.