Blackberries are one of the easiest berry bushes to grow, and they can grow in almost any quality soil. The secret to producing a maximum harvest of berries is using the right fertilizer for the bushes, in addition to keeping them watered throughout the growing season. Both organic and inorganic fertilizers are used to stimulate the growth of berries which can be used in cooking or just eaten raw as a snack.
Fertilizing Blackberry Bushes in the Fall
Apply an organic fertilizer after planting young blackberry bushes during the fall season. Spread the fertilizer on the ground at the base of the bushes. You can water the organic fertilizer in but it is not essential. A heavy layer of mulch can be added to the ground at the base of each bush for winter protection.
Fertilizing Blackberry Bushes in the Spring
Blackberry bushes can be fertilized once again in the springtime to encourage berry production. Any type of inorganic fertlizer can be used. Make sure it contains ammonium nitrate, which will help the fruit develop, and not just lustrous green leaves. Water the fertilizer into the ground after the application. Add a layer of mulch to your blackberry bushes to enrich the soil. Inorganic fertilizer can be applied a second time after fruit starts to appear on the bush.
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