Thats very sad news indeed.
I've always got my plants from Shannons and the staff are lovely and plants excellent quality.
actually I'm gutted as I love my pot plants and feel downright depressed that the only place locally I will be able to buy plants will be Sainsburys which is somewhat less than inspiring with poor selection and quality.
I wish the team there all the best in the future and hope I can get down there to buy some bits before its all gone.