Horseradish In A Pot; Leaves Turning Brown

Question

It started off great guns, new leaves, etc., but no new leaves in a while and 3 of the 4 still there are turning brown. It is in sun in a very deep container with ample drainage. I water when it feels dry to about 2″ below the surface.

Answer 1

Unfortunately, your photo did not come through. I am unable to assess the damage. Also, I am unable to see where you are located, as the number you have provided is an invalid US zipcode.

The only guess that I have at the moment is overwatering. This is even more true if the container is much larger than the plant, since there won't be any roots to take up water through most of the container.

If this is the case, then the infections from overwatering will require a fungicide. This article will help:

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

https://www.gardeningknowhow.com/edible/herbs/horseradish/growing-horseradish-how-to-grow-horseradish.htm