Verb
run to seed (third-person singular simple present runs to seed, present participle running to seed, simple past ran to seed, past participle run to seed)
Alternative form of go to seed
There is no bigotry like that of "free thought" run to seed. Horace Greeley
Biennials that are grown for edible leaves or roots are grown for just one year (and not grown on a second year to run to seed). Source: Internet
Some people have sown as early as May, and with advantage, but these early fields are apt to run to seed before winter, especially if the autumn be favorable to vegetation. Source: Internet