Vent: That time I overwatered a client's oak tree for 6 weeks straight
I took on a new property last spring up in Portland, a big old valley oak that looked a bit sad. I figured it was thirsty since we had a dry spell, so I set up a drip line and let it run every other day for about 6 weeks. Turns out the tree had root rot from some bad drainage in the clay soil. The leaves started yellowing and dropping, and the client was not happy. I had to dig up the root flare, cut out a bunch of rotten roots, and apologize. Learned to actually check the soil moisture with a probe before I flood a tree. Has anyone else made a similar mistake with watering?