New to this and I need help!

Hello all,

This is my first home and my first time taking care of my grass on my own. I have St Augustine and I’m in Dallas Texas. Some parts of the yard is greening while others aren’t. Also Dollarweed has invaded my yard from the neighbors house. I was pulling weeds when I pulled up to stolons and it looked very odd to me some of it was green while the ends where are dark brown to black color. Need some advice thanks. What steps should I take to have the best looking grass on the block!

First thing I would suggest would be a soil sample and then a talk with your Ag extension office after you get the results.  They will have a wealth of knowledge about growing lawns in your area.  When you talk to them let them know you want to go the organic path and not typical chemical fertilization.  They should be able to suggest the proper regimen for you.  

Actually the stolon look pretty normal, they usually aren't green in the root areas.
Walt made great suggestions for getting to know the quirks of your area, be sure to do those.
While you are waiting for the soil test results; be aware that St. Augustine grass is water hungry, it will die without enough water in the soil, get a bottle of fish emulsion and use it to water your lawn with, the nutrients are not only organic but your grass tends to crave those nutrients as do your soil microorganisms.
As Walt said, a talk with your extension office will go far towards your grass education as well as any other items you want to grow, they are the local experts, use them all you can.

Redhawk

Thank you, I will be sending it off Monday I bought an at home test kit but I rather send it to the experts