Ok, I'm totally new to the landscape/gardening area, but I'm about to pull my hair out because I can't figure out if I'm underwatering or overwatering my landscaping, or if there's something I'm missing.
Backstory: basically a new development just east of Dallas, about 3 miles from a lake. Soil consists of a ton of clay, and I've been pretty successful with my lawn growth all summer. Bermuda in all areas. I've fertilized three times (new sod planted in March). Originally I used a 3:1:2 ratio fertilizer, and it didn't really help the lawn. But I switched to the StaGreen 29-0-5 (plus 2% iron) and had great success all summer.
However, the trees that were planted are just having a terrible time. We have three areas of landscaping. One area has crape myrtles, and has done well, for the most part. Another area, which happens to collect water when it rains significantly, killed off my mexican plums, in spite of me cutting the water back. When I went to cut watering overall to twice weekly, it torched my grass, but the trees still did poorly. Additionally, our HOA planted a rather large Red Oak near the street with a bubbler (0.5 gallons/min). It eventually died, and had to be removed.
I'm trying to figure out the best way to make sure my lawn stays fresh without absolutely drenching my trees. Based on the HOA rules, I have to have trees in certain areas. I eventually replaced the mexican plums with crape myrtles about two weeks ago, but I'm not sure if I'm under or over watering or if they weren't healthy to begin with. The leaves are not as brightly colored as the other CM that I have in the other areas.
Whatever you guys can do to help me fine tune this mess, I would appreciate!