BLACKSBURG, Va., April 20 -- Virginia Polytechnic Institute and State University issued the following news release:

Spring gardenseason is in full swing,and garden centers are packed with colorful, tempting plants. But howdoyouknow whichoneswill thrive in your garden?

According toEric Stallknecht,Virginia Cooperative Extension greenhouse specialist andassistant professorinthe School of Plant and Environmental Sciences, there aresomebasicguidelines gardeners can follow to pick plants thatwillblossom athome.

When it comes to evaluating individual specimens,Stallknechthas one surprising tip:look at the roots.

"It's OK togentlypull a plant out of its pot and look at its root system,"Stallknechtsaid. "When you buy a plant,you'renot jus...