hello, and alfalfa question
I just discovered Gardenweb-- it's fantastic! Then I saw a forum for Iowa gardening-- wonderful!
I've gardened before with others, but for the first time I have my own garden in my own yard. The area that will eventually be the vegetable garden was previously part of a very hard-packed gravel-clay-sand alleyway. On the soil forum, someone suggested planting alfalfa for a season so its deep roots can penetrate and break up that hard layer (there is about 6-8" topsoil on it, and I will be adding manure). What do you fellow Iowans know about alfalfa? Is it warm or cool season? When should I plant? How tall will it get? Would I be able to turn it in by hand or would I need to roto-till? Thanks from Iowa City.