Posted: 28/04/2014 at 17:23
Ornamental bark will not feed the soil. In fact as it rots it may reduce the level of nutrients available to the plant. You should only use it as mulch to help retain water.
Am not sure about that. Nitrogen for example leaches out with rain, mulch reduces and slows rain at soil level. If you use a general feed then any nutrients used by bark mulch decomposing is offset b what you are adding.