How To Deep Water Trees
I thought I was doing this right until I used a soil probe today and found the soil was only wet down about 6".
Two mesquite trees planted Oct 2008, I want to get this right so the roots go deep. I dripped, slowly, slowly for 24 hours, moving the hose around the drip line perimeter. Then asked DH to make a probe I could use to see how deep it would penetrate. Imagine my surprise when it stopped in less than a foot.
DH says we need to flood the basin, that's the only way it will soak in. This is contrary to all the reading and research I have done on proper watering techniques.
How do I get the water down 3', which is what Extreme Gardening by Dave Owens tells me to do? Also have a Swan Hill Fruitless Olive and that Shamel Ash (no wonder it's sick) out front that I want to 'do the right thing' for.