Instead of building one, let them plant one. * Plant seeds of sunflowers (choose the tall varieties) close together in a circle, square, rectangle or the pattern of your choice.

Hybrid sunflower structures 4c with elongated petals obtained by adding an aliquot of PFS 30 - b -P2VP 300 in THF (2.5 μl, 10 mg ml −1) to a 2-PrOH solution (0.5 ml) of the sunflower assemblies ...

Abstract Sunflower production has become the most important industrial crop in Hungary in the last decade. The planting area of sunflower has gone up very rapidly (in 2007 it was 530 thousand ha). In ...