Planted but... failed

Back in April my sister and I suddenly had an urge to plant seeds so we decided to give it a try since I've seen my mom do it plenty of times and it looks fairly easy. I guess it really wasn't because our seeds never budded.

I didn't pick the vegetables, my sister did. :)

I think it could have been the soil, she bought it at Walmart. I don't think it was nutritious enough for our seeds :(. We failed, and I'm too lazy to try again but hopefully soon!