How to Grow ZZ Plant: Best Window, Watering and Propagation
The ZZ plant (Zamioculcas zamiifolia) is the one houseplant that does better when you forget it. How to grow ZZ plant well comes down to two rules: bright but indirect light, and water only when the pot is bone dry, which in most Pakistani and North Indian flats means every two to four weeks.
ZZ in brief
- Best window: a north-facing window, or 1 to 2 metres back from an east window.
- Water: when the mix is fully dry; roughly every 2 to 3 weeks in summer, once a month or less in winter.
- Pot: 15 to 25 cm (6 to 10 inch) plastic or terracotta, with a drainage hole.
- Mix: 2 parts potting soil, 1 part coarse sand or brick grit, 1 part cocopeat or compost.
- Cold limit: bring indoors below about 15C.
- Safety: not pet or child safe if chewed; see below.
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Why does the ZZ plant hate too much water?
Tip the plant out of its nursery pot and you will see fat, potato-like rhizomes under the soil. Those are water tanks. The plant fills them and lives off them for weeks, which is why it shrugs off a missed watering and a hot week with the curtains closed. What it cannot survive is a rhizome sitting in wet mix. It turns soft, smells sour, and the stems flop over. Almost every dead ZZ in a Karachi or Lahore flat was killed by kindness.
ZZ plant light requirements: which window in a Pakistani flat?
ZZ tolerates dim corners, but it barely grows there. For new shoots, give it bright indirect light:
- North window: the best spot. Steady, soft light all day, no direct summer sun.
- East window: very good; morning sun until about 10 am is gentle enough. Pull it back a metre from May to August.
- West or south window: the afternoon sun through glass in Multan or Delhi summers scorches leaves yellow and brown. Use these only behind a sheer curtain or several metres back.
- Interior corridor or bathroom with no window: it will survive months but slowly fade. Rotate it to a window for a few weeks.
Never put a ZZ straight from shade onto a sunny balcony. Leaves bleach within days.
How often to water ZZ plant, season by season
| Season | Typical gap | Note |
|---|---|---|
| March to May | Every 2 to 3 weeks | New shoots appear; water when fully dry |
| June to August (45C outside, AC inside) | Every 2 weeks, check first | AC rooms dry soil slowly; hot rooms faster |
| Monsoon (July to September) | Every 3 to 4 weeks | Humid air; rot risk is highest now |
| December to February | Once a month or less | Cold rooms in Lahore, Islamabad, Peshawar: barely water |
The check: push a chopstick to the bottom of the pot and pull it out. Any damp soil clinging to it means wait. Then water deeply until it runs from the hole, and empty the saucer after 15 minutes. For the general rules across plants, see how often to water potted plants in summer and winter.
Best soil for ZZ plant
Bagged nursery “garden soil” is often heavy canal silt that stays wet for weeks. Open it up. A mix that works: 2 parts potting soil, 1 part coarse sand or crushed brick, 1 part cocopeat or fine compost, with a handful of perlite if you can find it. The full ratios for different plants are in our potting mix guide. Feed only once or twice a year in spring and summer with a diluted balanced liquid feed; ZZ is a slow eater.
How to propagate ZZ plant (and how slow it is)
Division: the fast method
- In March or April, slide the plant out of the pot.
- Find where the rhizome clumps separate naturally; each clump should carry at least one stem.
- Pull or cut them apart with a clean knife, and let the cut faces dry for a day.
- Pot each into a 12 to 15 cm (5 to 6 inch) pot of the gritty mix, and wait a week before the first light watering.
Divisions look normal straight away. This is the method worth using.
Leaf and stem cuttings: the patient method
- Pull off a few healthy leaflets, or cut a whole stem into pieces.
- Let them dry for a day, then push the base 1 to 2 cm into barely damp sand or cocopeat, or stand a stem in a jar of water.
- Keep warm (above 22C) in bright, indirect light.
- Wait. A small rhizome forms first, then roots, and the first new shoot can take many months.
Cuttings are cheap and fun, but plan on a long wait. Spring and early summer starts are the only ones worth doing; winter cuttings mostly just sit.
The rescue trick for a rotting ZZ
If stems are collapsing and the soil is wet, do not wait. Unpot it, wash the rhizomes, and cut away anything soft or brown back to firm white tissue. Dry the rhizomes in shade for two days, then repot into dry gritty mix and do not water for a week. Firm rhizomes usually resprout even if every stem was lost.
Why are my ZZ plant leaves turning yellow?
- Yellow, soft stems from the base: overwatering and rot. Follow the rescue trick above.
- A few old lower leaflets yellow, rest fine: normal ageing.
- Yellow-brown patches on the sunny side: sun scorch through glass. Move it back.
- Leaning, stretched stems, pale colour: too dark. Move it closer to a north or east window.
- Wrinkled stems: genuinely thirsty, usually after a long hot spell. Water deeply once.
Pests are rare, but mealybugs can hide in the leaf joints; wipe with cotton dipped in soapy water, and see mealybugs, whitefly and gnats in pots for the full routine.
Grow it or skip it?
Grow it if you travel, work long hours or have a dim flat. Skip it, or place it high up, if you have a toddler or a cat that chews plants.
ZZ plant leaves contain calcium oxalate crystals. Chewing them can irritate the mouth and cause vomiting or diarrhoea in children, cats and dogs. Wash your hands after cutting it and keep it out of reach of small children and pets. If a child has chewed a leaf, rinse the mouth and call your doctor or a poison helpline; for a pet, call your vet. Seek urgent help if there is swelling of the mouth or throat, or trouble breathing or swallowing. A wider list of risky houseplants is in poisonous plants for kids and pets.
ZZ plant questions
How do I care for a ZZ plant indoors?
Give it bright indirect light from a north or east window, water only when the mix is completely dry, and use a pot with a drainage hole. Feed once or twice a year, and keep it above about 15C in winter.
How often should I water a ZZ plant?
Usually every 2 to 3 weeks in warm months and once a month or less in winter. Always check that the soil is dry right to the bottom first.
Can a ZZ plant live in a room with no window?
It can survive for months under bright office lights, but it will stop growing and slowly fade. Give it a few weeks by a window now and then.
Is the ZZ plant toxic to cats and dogs?
Yes, it is not pet safe. Chewed leaves can cause mouth irritation, drooling, vomiting and diarrhoea, so keep it out of reach and call your vet if your pet eats some.
How long do ZZ leaf cuttings take to root?
Slowly. A small rhizome and roots can take a couple of months to form, and the first new shoot often takes much longer. Warmth speeds it up.
Can I grow a ZZ plant in water?
Stem cuttings can root in a jar of water, but the plant does better long term in a gritty soil mix. Move it to soil once a rhizome and roots have formed.
Why is my ZZ plant drooping?
Drooping with wet soil means rot from overwatering; drooping with bone-dry soil and wrinkled stems means real thirst. Check the soil before you act.
Can a ZZ plant go on a balcony?
Only a shaded one, and only from March to October. Direct sun burns it, and winter nights below about 15C damage it.
Is ZZ plant lucky?
It is sold as a “fortune” or “money” plant in some markets, which is a sales tradition, not a plant fact. Its real merit is that it survives neglect.
More indoor and flowering plant guides: Phool aur Paudhe.