This year my daffodils and narcissi produced lots of green leaves and not one single flower. What could have been the reason ?
Certified GKH Gardening Expert
This can be due to an excess of nitrogen or a lack of phosphorus. Either of which can be fixed by adding phosphorus and potassium to the soil. This will, usually, correct this issue. Here is an article that will offer more information: https://www.gardeningknowhow.com/ornamental/bulbs/daffodil/daffodils-not-blooming.htm