My Nasturtiums Are Yellowing

Question

Nasturtium leaves turn yellow and wrinkly then shrivel at the edges and die. There is no evidence of any insects or bugs but the whole container seems to be suffering. Spraying with pest control does not help

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Answer 1

This seems to be an infection from overwatering. A fungicide may be necessary. Here are some articles that will help:

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

https://www.gardeningknowhow.com/ornamental/flowers/nasturtium/growing-nasturtiums.htm

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-moisture-in-plants.htm