Home › ZZ plant care
Plant guideZZ plant care: the complete guide
Guidance verified against Clemson Cooperative Extension Home & Garden Information Center, Iowa State University Extension and Outreach, University of Florida IFAS Extension and the ASPCA on 1 September 2026. Sources linked below.
ZZ plant (Zamioculcas zamiifolia) wants bright, indirect light but tolerates low light well, water only once the soil has dried out completely (about every 2 to 3 weeks, less in winter), ordinary indoor humidity and light feeding once or twice a year. It stores weeks of water in underground rhizomes, which is why overwatering, not neglect, is what actually kills it, and it is toxic to cats and dogs.
| Attribute | What a ZZ plant needs |
|---|---|
| Light | Bright, indirect light is best; tolerates low light, even fluorescent-only rooms, but growth slows |
| Water | Only once the soil has dried out completely; about every 2 to 3 weeks in summer, monthly in winter |
| Humidity | Ordinary indoor humidity is fine; no misting or pebble tray needed |
| Soil / pot | Well-draining, peat- or bark-based mix in a pot with drainage holes |
| Fertiliser | Balanced, water-soluble feed diluted to half strength, once or twice in spring and summer only |
| Temperature | 65 to 75°F (18 to 24°C) ideal; keep above 60°F (16°C) |
| Toxicity | Toxic to cats and dogs (ASPCA); calcium oxalate crystals, mild reaction |
How much light does a ZZ plant need?
ZZ plant does best in bright, indirect light but tolerates very low light, including rooms lit only by fluorescent light, per Clemson Cooperative Extension and University of Florida IFAS Extension. Keep it out of direct afternoon sun, which scorches the glossy leaves. This wide tolerance is the main reason it gets recommended for dim offices and windowless corners, though growth is genuinely slower the less light it gets.
How often should you water a ZZ plant?
Water only once the potting mix has dried out completely, roughly every 2 to 3 weeks in the growing season and about once a month over winter, per Iowa State University Extension and Outreach. Water thoroughly until it runs from the drainage hole, then let the pot dry out fully again before the next watering. This is a longer interval than almost any other common houseplant, and watering on a fixed weekly schedule rather than checking the soil is the single most common way people accidentally cause root rot in a ZZ plant.
Does a ZZ plant need extra humidity?
No. A ZZ plant is acclimated to arid conditions and thrives in ordinary indoor humidity, per University of Florida IFAS Extension, with no misting, pebble tray or humidifier required. This sets it apart from most tropical houseplants covered in the general humidity guide, which need real intervention in a dry home; a ZZ plant does not.
What soil and pot does a ZZ plant need?
Use a well-draining, peat- or bark-based potting mix in a pot with drainage holes, per University of Florida IFAS Extension, which suggests roughly 50% peat moss or coir, 25% perlite and 25% sand as one workable blend. Drainage matters more for a ZZ plant than for most houseplants, because its rhizomes sit in the soil holding water reserves, and a mix that stays soggy rots them directly. The soil and pot guide covers mix types and repotting signs common to most houseplants.
How and when do you fertilise a ZZ plant?
Feed sparingly, once or twice in spring and summer, with a balanced water-soluble fertiliser diluted to half strength, per Clemson Cooperative Extension. Skip feeding entirely over autumn and winter, when the plant is not actively growing and cannot use the extra nutrients. ZZ plant tolerates being under-fed far better than over-fed; the general fertilising guide covers the salt build-up that over-fertilising causes on most houseplants.
What temperature does a ZZ plant need?
ZZ plant does best between 65 and 75°F (18 to 24°C) and should stay above 60°F (16°C), per University of Florida IFAS Extension. Below that, growth stalls and the plant becomes more vulnerable to cold-related stress; feeding should stop outside the ideal range regardless of season. Keep it away from cold draughts and air-conditioning vents, the same cold-stress risk covered for wilting plants generally.
How do you propagate a ZZ plant?
Three methods work: rhizome division, stem cuttings and leaf cuttings, per Iowa State University Extension and Outreach. Division is the fastest and most reliable if the plant already has several stems: separate the clump so each section keeps a healthy rhizome attached, then repot each piece into its own well-draining mix. Stem cuttings root more reliably than single leaves and are best taken in spring or summer. Leaf cuttings work but are the slowest by far, often taking several months to form a new underground rhizome before any visible growth appears, so they reward patience more than any other propagation method on this site. The general propagation guide covers water- and soil-cutting methods for other houseplants.
Why is my ZZ plant struggling?
ZZ plant has a reputation as nearly impossible to kill, which makes its most common failure mode counterintuitive:
| Symptom | Likely cause | Fix |
|---|---|---|
| Leaves yellowing, stems soft or mushy at the base | Overwatering, by far the most common cause; the rhizomes are rotting | Let the soil dry out completely before watering again; check rhizomes for firmness if it persists |
| Leaves yellowing but stems firm | Too much direct light, or a lack of nutrients over a long period | Move out of direct sun; resume light feeding in the next growing season |
| Slow or no new growth | Normal in low light or winter dormancy, rather than a problem | Move to brighter indirect light if faster growth is wanted; otherwise leave it |
See the general yellow leaves guide for the wider decision tree behind this symptom on other houseplants.
Is a ZZ plant a succulent?
No, a ZZ plant is an aroid, not a succulent, even though its drought tolerance and thick, glossy leaves make it look and act like one. The difference is where it stores water: true succulents store it in fleshy leaves and stems, while a ZZ plant stores it in swollen underground rhizomes, structures closer to a potato than a typical root. That single feature explains almost everything unusual about the plant, the long gaps between waterings it can handle, and the way overwatering rots it from below rather than drowning the leaves directly.
The rhizome, not neglect tolerance alone, is why a ZZ plant survives being forgotten but rots when watered on a fixed weekly schedule.
Is a ZZ plant toxic to cats and dogs?
Yes, mildly. The ASPCA lists ZZ plant (Zamioculcas zamiifolia) as toxic to cats and dogs, containing insoluble calcium oxalate crystals in the leaves, stems and rhizomes, the same toxic mechanism as pothos, philodendron and peace lily. Chewing causes oral irritation, drooling and vomiting, a local and self-limiting reaction rather than a medical emergency, though a vet should still be contacted if a pet has ingested a large amount. See the full pet-safe plant list for ASPCA-verified alternatives with no toxicity risk at all.
FAQ
- How often should you water a ZZ plant?
- Only once the soil has dried out completely, about every 2 to 3 weeks in summer and monthly in winter.
- Why does everyone say ZZ plant is indestructible, but mine has yellow leaves?
- Yellow leaves almost always mean overwatering, not neglect. The water-storing rhizomes rot in soil that never dries out.
- Is a ZZ plant toxic to cats and dogs?
- Yes, mildly. The ASPCA lists it as toxic, causing oral irritation and drooling if chewed.
- Is a ZZ plant a succulent?
- No, it is an aroid. It stores water in underground rhizomes rather than fleshy leaves and stems.
Related guides
Sources
- Clemson Cooperative Extension Home & Garden Information Center, ZZ Plant (Zamioculcas zamiifolia): Indoor Care, Growing Tips
- Iowa State University Extension and Outreach, I Recently Purchased a ZZ Plant. How Do I Care for It?
- University of Florida IFAS Extension, Florida Foliage House Plant Care: ZZ Plant
- ASPCA, Toxic and Non-toxic Plants: ZZ Plant