What type of fertilizer do you use on black raspberries?

For black raspberries, a balanced fertilizer with an N-P-K ratio of around 10-10-10 or 14-14-14 is recommended. Applying a slow-release fertilizer in early spring can provide the necessary nutrients throughout the growing season. Additionally, incorporating organic matter, such as compost, can enhance soil fertility and improve plant health. It's important to avoid over-fertilizing, as this can lead to excessive foliage at the expense of fruit production.