lol .. me either! our own grown seedlings seem ok at the moment!
A great member suggestion for children's sensory learning is to put herb & aromatic plant sprigs into synthetic organza bags for the children to get a closer look at, touch/feel, smell, listen and where appropriate hold edible foods for taste.
It's hard to find a book that doesn't mention planning specifically for England's eyfs. These are a couple of titles you could use to guide play, learning & activity ideas
A little guide to wild flowers and
Kids in the garden - growing and eating