My Queries Regrading The Flowering Of A Vibernum Bush

Question

We planted a Vibernum about 7 years ago but the last two years it hasn’t really flowered properly. We now get very few of what we would call ‘proper’ flowers ( photo 1 ) which are beautifully perfumed the vast majority just being a type of ‘bloom’ that seems to never mature ( photo 2) or have any perfume – what causes this please and can we remedy it ? Thank you for your help

• 
• 

Answer 1

I suspect they need pruning. Here are a couple articles that should help:
https://www.gardeningknowhow.com/ornamental/shrubs/viburnum/viburnum-pruning.htm
https://www.gardeningknowhow.com/ornamental/shrubs/viburnum/viburnum-shrub.htm