three or four years ago I bought my mum a standard magnolia for mother's day but it still hasn't flowered. each year it gets more flower buds but before they can open they all drop off. although it's in a large pot rather than in the ground it seems pretty leafy and healthy and puts on growth every year but still no flowers. my mum, bless her, isn't the most attentive of gardeners so I'm thinking maybe it needs feeding/mulching/more regular watering, but any advice would be very welcome. thanks folks!