你还真够顶真的,我来帮你一下：
1、用汉语想想,花不能自己想开花（flower flowers ,你不觉得别扭吗?）,只能是树想开花.
This bush flowers in the spring.
2、而绽放,既可以是树也可以是花
These plants bloom in spring.
A flower blooms alone.
如果想表达玫瑰花绽放,就用：
1、The roses are out.
2、The roses are in bloom.
3、The roses are in flower.
4、The roses opened out .