I have a big bag of 5-20-5 granular fertilizer. Can this be used safely on daffodil patch, and if so, when in growing cycle?
no pictures needed
Your fertilizer is very high in phosphorus. Follow instructions carefully; phosphorus can build up in the soil and reach harmful levels. If your daffodils seem to be struggling, add a small amount of nitrogen fertilizer at the end of blooms. Blood meal and composted manure are 2 examples. The following article has more information on when to fertilize.