My ZZ(Zamioculcas zamiifolia) plant has been re-potted by my grandmother. I have no idea what soil is being used, neither she does.
Recently, the leaves have been yellowing starting at the bottom and it would eventually drop off. One stem has even lost all it's leaves. I was wondering if it was possible for the leaves to grow back.
Also, some leaves has been getting this black lines.
And this brown cuts
This weird plant has also been growing and I have no idea what it is,
From a distance, their flaws aren't noticeable, except for the yellowing of certain leaves.
I water them once or twice a week. I would let the soil fully dry before watering. I live in the Philippines, so the weather here is really warm and the plants are kept outdoors.