I bought some buck grub in early FEB. I poured it on the ground in strips like the bag says. Went back two days later and all that was left was a huge 4 foot in diameter hole dug by the deer. I went back to check some other spots where I put it out and there were 4 bucks standing around it. This stuff really atracts deer, I don't know as far as antler growth. It contains alot of protein and fat and other nutrients that have to help throughout winter.