Question: why is my zamioculcas suffering?
Good morning. I would like information on how to cure my "Zamioculcas". it is located in the house, in a bright enough room (since I have a window that I keep open during the day). I have owned it since July 2011, and I water it about once a week. I do not use fertilizers or pesticides, there is no presence of insects. Initially it has increased significantly in volume, as many as 5 branches. To date, however, the plant has problems: the leaves have changed color becoming red and fall. What should I do??? I hope you can help me.
Answer: the zamioculcas
Zamioculcas is a succulent plant native to Africa, it bears drought very well, and strongly fears water stagnation and cultivation in a constantly humid soil. Unfortunately, as is the case with most plants, your personal rule of watering it every week is not realistic: plants are living beings, and as such their needs vary with the seasons, the number of hours of sunshine, the climate.
Usually the Zamioculcas they are grown like any other succulent plant, that is, they are watered when the soil is dry; they withstand drought very well, while an excess of water can lead to the death of the plant; therefore it is convenient to water only when we feel with our hands that the soil has dried. This can mean once a month of October, every 3-4 days in July, depending on where you keep the plant.
I advise you to buy a pot a little larger than the one in which your zamioculcas is now, and to repot it, using a special soil for succulent plants (you can find it in the nursery), or preparing a mixture consisting of universal soil, mixed with sand or pumice stone, to increase drainage. In any case, avoid leaving water in the saucer, or watering once too often. The zamioculcas are resistant and adaptable plants, but after months spent adapting to non-ideal conditions, the chances of them being affected by rot and fungi are very high; therefore it often happens that a zamioculcas that for months has adapted to receive excessive quantities of water, suddenly wastes away, as if suddenly affected by all the months of excessive watering.
When repotting a plant using the soil purchased in bags in the nursery, remember that these substrates are generally already fertilized; therefore immediately after repotting, water only when the soil is dry and that's enough; after about 2-3 months you can start to supply fertilizer, every 15-20 days, from April to September. For zamioculcas a fertilizer for succulent plants is used, low in nitrogen and rich in potassium.
It would be advisable to repot your plant every 2-3 years, because the soil contained in the pot is small, and after a few years it tends to become excessively low in mineral salts and to take on a compact and asphyxiated mixture.
If you wish, when you repot the zamia, you can divide the bread of roots and stems, so as to obtain two or more plants, to be repotted individually.