Japanese Blueberry Trees Have Yellow Leaves

Question

What could be causing some of my Japanese Blueberry leaves to turn yellow, and what can I do about it? They have made a remarkable recovery from the main freeze, and are extremely healthy looking otherwise. Thanks !

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Answer 1

Test the soil for pH swings and deficiencies, but I suspect that the pH is high, making nitrogen unavailable. Amend NPK ratios to be in the "moderate" category.

The soil should be light and airy. If not, then mulch and add earthworms! This will help loosen up any compacted soil.

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

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

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/test-soil-for-pests-and-diseases.htm

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/making-sure-soil-drains-well.htm

https://www.gardeningknowhow.com/composting/vermicomposting/page/6