Currently the walnut is a shrubby little tree we have planted in the front area between our driveway and the neighbor's driveway. I have been watering the main areas of the yard once a week and just lay the hose by the walnut tree on a trickle a little more often. This is the first year for fruit and now it looks like I am losing one! (Sorry, sweetie, I will keep an eye on them.)
Not certain which variety this one is... was marked a "Hill Country Walnut".