how long does lawn fertilizer (with weed control) stay good before expiring?
Fertilizer: Fertilizer never goes bad. Even when it becomes compacted and hard, all you need to do is take a hammer and break it apart. However, spread the compacted pieces sparingly to not destroy the roots. *Store all products in your garage. Do not keep in a shed or other type of outdoor storage, due to weather extremities (i.e. too hot in summer, too cold in winter), for this may alter product shelf life. Yardcare.com is a lawn and garden resource provided by The Toro Company. Sources: http://www.sunjournal.com/specialsection/land06/20060414204.php?
