I think what brought the record keeping into play were the regional differences in how plants perform and it is an effort to get the regional information more accurate. Nothing new in that, and it may be that it is not worth the effort, but it certainly makes you pay more attention to your plants, and I am always hunting for reviews from people in my zone when I look at the plant of the day feature. The results in zone 4 for a plant are seldom what I could expect in zone 8b. I doubt many people will fool with it, but I hope a lot do.
