godan verb (-u), intransitive verb
all come in; all come out; fully grow
Used when teeth, hair, seedlings, flowers, etc. all appear or grow in completely. Often implies a process reaching completion.
子供の歯が全部生え揃った。
The child's teeth have all come in.
春になると庭に花が生え揃う。
In spring, flowers come up all over the garden.