Sunflowers
On 30 Sep 2017 20:16, Judith in England wrote:
I have grown some sunflowers either side of a patio door - facing south.
I was really quite cheesed off that instead of facing south and be visible -
the flower heads decided that they were going to face north : ie toward the
wall.
I then realised that when sunflower heads follow the sun: they don't actually
have "eyes" - they are following the source of the heat.
I think that my sunflower had realised that rather than waste energy following
the sun: it was much better to face the wall all day, and every day: and get
the heat from the brick wall !!
An interesting observation, I have always read that they follow the
sun. Wonder if any research has been done on this.
--
Regards
Bob Hobden
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