Why are leaves on my blueberry bushes turning yellow?
I’m certainly not an expert blueberry grower, but I would have to ask about the growing conditions where you have your blueberries planted. They need a loose, well draining soil. It’s very possible that you are over-watering the berries or that they are not draining properly. Very often yellowing on other plants is a result of this problem. Blueberries have a rather shallow root system. They love water, but they drown easily. How is the ph level of the soil? It should be around 4.5 . It’s not that blueberries need really acidic soil, but they need iron but are very poor at taking it up, so they’ve adapted to acid soil which makes the iron more available to the plants. You may need to amend your soil with a humusy material, such as composted leaf litter, which lowers soil pH, boosts organic matter and improves soil drainage — all critical for blueberries. Just avoid including manure or maple leaves, which raise pH. And blueberries like full sun as much as possible. Hope this helps a bit
