Please note : these are practical tips that I have gathered from several gardening sites. I myself am not a botanist. These are non-exhaustive advice, since each plant will react differently depending on its environment. If your plant is doing very well and your care does not follow this sheet to the letter, don't change anything. Be attentive to the moods of your plants before anything else!
Up to 1m
Family: Araceae
Exposure : Bright or subdued; no direct sun.
Mist : It is not compulsory; however, this will keep pests such as dust mites away.
Watering in spring / summer : approximately every 4 days; postpone it if the substrate is not dry enough.
Watering in autumn / winter : slowly reduce to once a week then to once every two weeks.
Temperature : Ideal around 25 ° (77F). Must not drop below 12 ° (53.6F) nor rise above 30 ° (86F).
Repotting : In spring every two to three years if the plant is cramped (roots sticking out)
Soil : Mixture of potting soil for green plants & sand. Place clay balls at the bottom of its pot. The best being an intermediate araceous mixture, 25% potting soil (preferably organic), 25% sphagnum moss, 40% coconut bark (between 10 and 20 mm) and 10% perlite (20% if your climate is rather temperate / cool).
Liquid fertilizer : if used, from spring to summer once or twice a month, then stop completely during fall and winter. Useless if the soil is recent and already contains fertilizer (wait at least a month). Liquid fertilizer should always be administered on a soil previously watered.
Concerns:
-The leaves of ZZ turn yellow : excess water. Then use liquid iron and soft water. Be careful: if the yellow leaves almost come off on their own by pulling on them, the roots are rotten. In this case, stop watering for three months.
Plant prone to mealybug attacks.
Other varieties:
Zamioculcas Zamiifolia '' Raven '': the same in black.
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