cheap redoing of backyard post #2

cheap redoing of backyard post #2

I recently posted about fixing up my backyard, I got some awesome suggestions for secrets to finding the best deals on plants. yesss. before i go a planting, i need to fix my garden fence so that my dog doesnt eat our tomato plants. they're poisonous to dogs. eek. question: i've dug down 7" for our fence posts and hit solid rock. I live in texas. Many websites say I need to dig down a minimum of 2'. that obviously is not going to work with my basic tools. will 7" be fine for a 4' high fence?? Or do I need to go out and buy some fancy pants tool to break through the rock? yall are awesome!! thanks so much!
Just a little more color and a plant ID

Just a little more color and a plant ID

Pics!

Pics!

Tadpoles

Tadpoles

Muchoo help needed puh-lease. **UPDATED**

Muchoo help needed puh-lease. **UPDATED**

Black hole of the backyard

Black hole of the backyard

My livingroom

My livingroom