Posted: 05/11/2013 at 22:01
Fish blood and bone releases the nutrients at different rates. The dried blood is almost instant, the fishmeal will release over a few weeks, and the bonemeal over a few months. I would not feed at all at this time of year. Apply FBB in the spring, either mixed with compost as a top dressing around existing plants ,or sprinkled and worked into the top few inches of soil, before new planting. That should suffice for the season. Applying blood or other fast release fertilisers now will result in soft leafy growth which will be easily damaged by cold weather/winds/frosts.