TIL that deep root fertilization on a 40-year-old maple was actually worth the $350

I always thought it was a gimmick for homeowners who didn't know better. The client insisted after seeing a neighbor's tree bounce back. We did it in early spring, using a soil needle to inject a mix 18 inches down around the drip line. The canopy filled out way more than I expected by mid-summer. Has anyone else had a specific tree species respond really well to this, or was this just a lucky one-off?

2 comments

2 Comments

the_henry2mo ago

Guess my "poke it and see" method needs an update (the tree probably agrees). Always figured halfway to the drip line was just for younger trees.

tarak172mo ago

Wait, isn't the drip line a bit far out for the injection? I've always had better results going about halfway between the trunk and the drip line. That's where the most active feeder roots usually are for a tree that age.