I think these sunflowers stand true to their name: ‘Tall Yellow’. They’re definitely tall – I’m 5′ 8″ and in the below picture my arm is at its full extension above my head, putting these stalks at over 8ft skyward! The flowers, too, are massive – bigger than my hand, though foreshortening makes them seem a tad smaller in the picture and a very nice, bright, sunshine yellow. Definitely doing what it sez on the tin seed packet.
I only planted three, but they’ve all come up and are a nice late-summer splash of colour in the garden – though only one is flowering so far. I’m hoping, next year, to plant a row along the fence to break up the orange-red monotony ;)