This is a prove that using free domain from free hosting such as 000webhost.com also can produce good page rank for your site. My home and garden site now PR 4 with targeted sub pages for keyword planting grass seed and rubber seal has a PR 3. This is a good news for me that can't afford paid hosting services.
After this I need to produce more content for my site and optimize each keyword. All the best.
note: I think my site only 1 month old, hope didn't get google sandbox for quick PR given..