Comment on change through focused group intention / measure the change?

If we were to come together as a class and focus our energy on one intention, I believe that unusually rapid growth of a seedling would be a good start. Measureing would involve having a control seedling planted at the same time in the same soil but totally out of the vacinity of the intented or experimental seedling. Both would have the same amount of water and sunlight on a daily basis. After a month of focusing intention on the experimental seedling, we would compare its growth with the control seedling to see if focused group intention truely affects growth of an organism in terms of rapidity.