Poor primrose variety
I bought some of the Primlet variety of primrose 4 weeks ago, from 2 different suppliers. Planted out in tubs, but following last week's rain they are destroyed, middles have rotted out with mildew. Pic shows them next to tub of 'regular' primroses showing ''normal' weathering. Anyone else had this problem? Seems like a variety to avoid outside.
With them being so floriferous there is no gap between the flowers. What you are seeing is also the old flowers dying off, they do need a little attention with removal. I think the lack of air movement around the pot might contribute?
You say in the garden but the pot looks like it might be against a wall or something?
Good air flow helps them to dry off after rain.
A more open position may help.
They have shorter stems than the ones next to them too.
You do need to give them some care when you have a compact floriferous variety like that compared to wild and more open types.
I would take Lyns sound advice.