<http://schema.org/description>
"Seedballs are marble-sized balls that come packed with wildflower seeds. Throw one into an area with dirt or soil and watch some flowers grow."^^<http://www.w3.org/2001/XMLSchema#string>
<http://inhabitat.com/seedballs-marble-sized-balls-packed-with-wildflower-seeds-for-guerilla-gardening/>