First time gardener

My mom is a pro when it comes to planting annuals in her yard. Her petunias are stunning each year. I tried out to see if I have a green thumb too!

Here are my before pictures:

Here are pictures when I first planted:

This picture was taken about 2 weeks after we planted the petunias. But this is just after we planted the Hydrangea.

And here are pictures I took tonight!

I think next year, I would like to raise the flower bed, so they aren't taking over the grass. :)

All I do, is water once a day and fertilize once a week to start out, then as the weather warms, I fertilize 2 or 3 times a week.