Cool idea! I love DIY stuff.
I have a good tool for the job but the roots are so dense I feel like I'd do some damage if I really tried to work the Recharge in much.
No worries - I got it spread out and VERY lightly scratched, then covered with a thin layer of EWC.
Mornin Major...just a thought on the scratching in of amendments and stuff. What I do is to poke a lot of little holes in the soil with a big fork.....works great without damaging roots...ya'l should try it! After you've spread out the product(EWC, Re charge,amendments)just grab a big serving fork (don't let the wife see ya do this) and start poking holes ....a couple minutes later , just water it all in. Cheers pal!
Oh, and if it's outside like yours Major try using a pitch fork, they will work awesome for that outside....saves hurting the roots and will really do a good job of aerating your compacted , outside soil!!
Is there any significance to the water pot on the post?
The only reason we have stuff on the posts is because we can. 
The other posts have whirligigs or other assorted oddities. My wife loves "whimsey" so you find weird things all over our place. She hung an old window from a branch in the forest. I asked her why. She said, "I like the view from there." 
