Happy Frog Rose Food Fertilizer includes linoleic acid, a compound found in alfalfa meal, which acts as a growth stimulant and helps produce higher yields. It is also pH-balanced and combined with premium ingredients alfalfa meal, bat guano, kelp meal, feather meal and humic acid, a naturally occurring organic material that is formed when organic matter decomposes. Humic acid also helps with seed germination and may increase the uptake of important micronutrients. Gardeners have come to know that their prize-winning blooms deserve more than an all-purpose fertilizer. This is the one! Also, conveniently packed in a resealable plastic bag. Quantity: 4 lbs.