Sunflowers
Sunflowers turn towards the sun only when they are young plants. As they bloom, their stems harden. A cut sunflower in a vase no longer makes this movement. The direction of light therefore does not change its position in the vase.
Sunflowers turn towards the sun only when they are young plants. As they bloom, their stems harden. A cut sunflower in a vase no longer makes this movement. The direction of light therefore does not change its position in the vase.