Wild tomatoes, which had gone to seed or been remorselessly hoed out from the beginning of Berande, were foraged for salads, soups, and sauces.

But the "frump" will let herself and all her surroundings go to seed, not from humbleness of mind or an overwhelming sense of her own unworthiness, but in pure complacent conceit.

But suppose I hang about till eighty and die a childish old gentleman with a mind all gone to seed.

[…] if this total Taliban takeover and collapse was one of the contingencies that […] President [Joe] Biden had foreseen, then how come this plan […] went to seed so rapidly?

I found that slick and graceful enough at 25. Now, with marriages going to seed all around me, it is the insight, the penetration, that makes me smile/wince.

Go to seed

Meaning

Verb