Keep the plants mulched with a few inches of oak leaf or pine needle mulch to help maintain soil acidity.Soil pH problems must be corrected to improve blueberry plant health. Spraying plants with a foliar chelated iron fertilizer, or spraying new leaves as they emerge, will temporarily green up the leaves, but it will not improve plant health in the long term. Soil amendments don't work quickly enough to fix this in one season.Poor fruit production and general plant failure.Chlorosis, or yellow discoloring of the leaves, is usually the first sign of a soil pH problem.Water the plant frequently and deeply, enough to keep the soil moist but not saturated.īlueberry plants in soil with a pH above 5.5 will struggle to absorb the nutrients they need from the soil.Water thoroughly after planting to ensure moisture reaches the deepest roots.Mulch also helps maintain soil moisture, prevents weeds, and reduces soil temperature in the summer.These types of mulch are acidic and will help maintain a low soil pH.Pack the soil firmly around the roots, then mulch the planting with 2 to 4 inches of sawdust, peat moss, oak leaf or pine needle mulch.Dig the holes large enough to accommodate all the roots and deep enough so you can cover the uppermost roots with 3 to 4 inches of soil.Plant young blueberry bushes in late April or early May.If the variety you purchase is listed as growing larger than that, then space them a little further apart.
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