Why Are Year Old Gazinias Suddenly Dying?

Question

These gazinias have thrived in this location for about four years. Suddenly, one began to dry up and die. I inspected it for insects since the plants around it seem to be fine. I didn’t find any. Now, as you can see in the pictures, the gazinia next to it is beginning to do the same. Is this possibly an underground insect or a fungus that I can’t see? Thank you for your help. I don’t want to loose all of the plants.

• 
• 

Answer 1

These are very drought tolerant, and susceptible to root rots. A fungicide and less water may be in order.

These articles will help:

https://www.gardeningknowhow.com/ornamental/flowers/gazania/gazania-treasure-flowers.htm

https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm