How many planets in the solar system have rings around them? There are four planets in the solar system that have rings around them, namely Jupiter, Saturn, Uranus and Neptune. These planets are classified as jovian planets, and they are massive balls of gas surrounded by rings and moons.
River Birch typicaly lives to about 75 years old but sometimes it can reach 80 to 100 years old in good sites. If a tree is planted wrong and/or in a wrong site it can cut its average livespan in half or even more.
I prefer to buy trees that will mature to an appropriate height for their spot. I have talked about some of my favorites in past posts, including: Fox Valley River Birch which grows about 12 feet in 15 years instead of a Heritage River Birch which can get 40-70 feet tall.