The plants grew bigger than its container, and well, I re-potted them in bigger containers. After a week or so, I observed that the stem cuttings had rotted in the new containers. I was upset, and regulated the watering of the plants. I also exposed them to partial sunlight.
Yesterday, I checked them – one was good, but two of them were struggling. Today, two seemed fine, but I doubt if all of them will grow healthy.
What happened? Botrytis disease or Pythium root rot! When I searched the Internet for more information, I found: