An inventive flowable granular material for adhesion to foliage is provided, which material includes peanut hull fragments as a preferably majority lightweight component, a heavy weight component mixed therewith to improve the flowability of the resultant granular material, and a solvent to aid in the transfer of the foliar active agent to a leaf surface and foliar adhesion. Related particle size distributions and densities are described. Also provided is a process for promoting plant growth comprising: broadcast distributing the inventive flowable granular material to adhere to foliar surfaces; and releasing the foliar active agent onto the foliar surface.