SILVER MAPLE大概是烂树之首：
10年后你的草地/废水管道/SIDEWALK/DRIVERWAY就毁了。
但它长得快，易活，成本低，很多开发商种图省事。反正房子卖了，10年后的问题有新
房主承担。
好树一般长地慢，成本高。
1. Silver maple (Acer saccharinum)
Big, fast-growing, and a dandy shade tree, alack of ornamental beauty，
widespread in eastern states and the Midwest. Unfortunately, the speed at
which the tree grows makes for weak, brittle wood that may break during
severe storms. The shallow root system invades sewage pipes and drain fields
, and is notorious for cracking driveways and walkways.a lack of ornamental
beauty and an aggressive root system that clogs drains and buckles sidewalks
Don't plant bad trees that will cost you time and money later.
信不信由你们了。
