I responded awhile back on these trees/shrubs. We've had them for a number of years on our hunting land. They tend to grow fairly quick(probably faster in warmer climate then here in northern Minnesota). Most of ours are in the 6'-10' range now. I suggest you fence them in for first several years to keep critters off them and to let them grow. They produce fruit(pods) that look like long green beans. Here, the deer go nuts for them in the fall/winter when most browse is gone. They really rip into them when they get full of pods. You'll find that they also tend to spread out as years go by. So planting a couple will get you a bunch down the line if you care for them in young growth stage. Give them a try, you'll be glad you did. Tazimna