A: Yes, you can use Milorganite, with an analysis of 5-2-0. The 46-0-0 fertilizer is commonly called urea. Milorganite has much less nitrogen than urea. Therefore, since it is nine times less concentrated, you would use nine times as much as the recommended urea. Example: if you were recommended to use two pounds of urea per 1000 square feet, you would apply eighteen pounds of Milorganite instead. The University of Georgia has a handy calculator that allows you to substitute locally available fertilizers for their laboratory recommendations at www.georgiafertilizer.com.
Q: Several years ago we purchased what we were told were two dwarf Helleri hollies. One has died. The other is still no more than a foot tall, with a spread of two and a half feet. We are trying to find a replacement but have been told there is no such thing as a "dwarf" Helleri holly. Kathryn Richardson, Gwinnett County
A: You're right, 'Helleri' holly grows bigger than you need, perhaps six feet tall, depending on environment. Consider Ilex crenata 'Soft Touch' or Ilex vomitoria 'Bordeaux' for small-sized holly replacements.
Q: Two years ago, I replaced my fescue lawn with dwarf mondo grass. I planted sprigs about four inches apart. So far, so good, except for one problem: in the bare spaces between the sprigs, there are lots of weeds growing. Can you recommend a weed killer? Peter Vantine, e-mail
A: Sethoxydim (Vantage) would be your best bet for grassy weed control. Imazaquin (Image for Nutsedge) is labeled for use on most groundcovers. Vantage is difficult to find at garden centers but Cooper Seeds (www.cooperseeds.com) in Auburn has it.
Listen to Walter Reeves Saturday mornings on AM 750 and 95.5 FM News-Talk WSB. Visit his website, www.walterreeves.com, or join his Facebook Fan Page at xrl.us/wrfacebook for more garden tips.