http://www.miraclegro.com/index.cfm?fuseaction=productGuide.productDetails&partnerId=100003&poeSiteId=10928&strCategoryId=23804&strProductId=104238&strAdditionalBrandId=&dsvs=86372F05-65BF-EFF8-08F2-A60AD3D1EF4A,x,x&CFID=5658051&CFTOKEN=51280867 is that fertilizer safe for my plant?