Sunflowers

Ahhh the summer. Italy. The hot sun beating down. The fields of sunflowers raising their pretty faces to follow the sun around the sky - or do they? Yes, we were puzzled by the behaviour of the sunflowers and would be interested in the comments of the world at large - preferably if you are an actual sunflower farmer and thus actually really know the answer. So, the situation ......the sunflowers bodies (as it were) follow the sun round but their actual faces whilst pointing in the general direction do not lift towards the sun!!!! There, I've said it!!! They do not at noon face directly up!!!! I promise you!!!! Their raggedy heads are always bowed - but why??? Are they weighted down by their seeds so are physically unable to face the glowing orb that is our nearest planet (but one, I think I'm right in saying)? When they are young and seedless are they more daring in their posture, staring right into the burning beams of the aforementioned orb of brilliant light? Or are they just as adolescent in their inability to meet the eye of maturity as an adolescent? Whatever, they do not act as tradition demands they should and I demand to know why. Answers please to this blog.