Pig Weeds All Gone ???

[crash325]

Use to have a large patch of pig weeds ( careless weed ) In the front yard & other places. Some when conditions were right would get 12 feet tall.
But when young, up to about a foot high they were great as a spice, used in home remedies & even good in salads.

Some small birds liked the seeds if they went maturity.

Now some other wild weed with flowers has replaced them.

Just wondering if any of you have any ideas as to why they went away. ?????

 

[SPIKER]

Some one said these seeds of it last up to 40 years and it often goes dormant for years. it is all over our garden I usually hoe it out and toss it. Read something on it today said it is very high in Omega3s & better source than fish!>?

M