Question

Why do sunflowers face away from the sun?

Answer 1

Firstly your question is wrong. Sunflowers always face towards the sun.

This property of facing the sun is mostly observed in young flowerheads and generally stops once the flower starts towith bloom (mature sunflowers generally face east). The fascinating phenomenon of flowers following the sun across the sky is called heliotropism.

The reasons for this behaviour are:

1)To get noticed my pollinators and insects so these plants can reproduce.

2)To fasten the process of photosyntheis.