JR Peters Jacks Classic 52610 Petunia FeED Plastic Resealable Pouch with Handle 20-6-22 Fertilizer, 10-Pound This special formulation provides essential amounts of iron needed for consistent plant growth Contains an enhanced micronutrient package that includes 3 forms of iron and extra magnesium Petunia feed is especially effective in hanging baskets containers that are watered often This low phosphorus formulation keeps plants fuller This product comes in 10-pound