I have a Magnolia, Forsythia and Viburnum that appear to have decided not to flower this year. Driving around I can see plenty of these plants that are in full flower but my Magnolia and Forsythia are coming straight out into leaf and my Viburnum hasn't produced any flower buds at all.
Is this normal for these to skip a years flowering and is there anything I can do to ensure they flower next year?
Both the Viburnum and Forsythia are close together and both need a good prune. The Magnolia is in a different part of the garden.