Unhealthy roots can be a variety of colors, including brown, black, and yellow. The specific color depends on the type of damage or disease affecting the roots.
Here are some examples of unhealthy root colors:
- Brown roots often indicate root rot, a common problem caused by overwatering or poor drainage.
- Black roots can be a sign of fungal infections, which can damage the roots and prevent them from absorbing nutrients.
- Yellow roots may indicate a lack of nutrients or a problem with the soil pH.
It's important to note that healthy roots are typically white or cream-colored. If you notice any discoloration in your plant's roots, it's a good idea to investigate the cause and take steps to correct the problem.