As the title says. Some years back I grabbed a few seeds from a Morning Glory that a friend had growing up his back fence as a weed and planted them. Predictably, I am still trying to eliminate the plants from my yard.

They certainly do look like escaped ornamental Morning Glory with "Heavenly" blue, white, or variegated blue and white flowers. I also see these same Morning Glories growing in other places.

Are they, in fact, escaped Ipomoea tricolor? Would trying a few immature seeds hurt me?

uh yeah

the concentration varies greatly but like

with one hand harvest the pods
squoosh them
blow away the chaff
put them in your mason jar

you want like a thousand

Thousand is a bit much. Morning glory is psycho-active and save in small doses. But unlike with LSD, you cannot safely take enormous amounts of it. And side effects can become extremely unpleasant with larger amounts.

I would just start low to see how you respond. Something like 50 seeds. Then maybe something like 150. For seeds of average strength, 300 to 400 is quite heavy and the upper limit of what most people find comfortable.

And just to be sure, check if they're realy morning glories.

"Weed"!?! How dare you!

Since you used the phrase 'weed', it makes me wonder if you are referring to Field Bindweed (Convolvulus Arvensis), which looks pretty similar to Morning Glory.

Like dragonrider, I think a thousand Morning Glory seeds is a bit much, especially if they are fresh.

There are several plants known as bindweed and most of them are quite powerful purgatives. In the case of hedge bindweed (Calystegia sepium), for instance, a few seeds will have this effect. It would be prudent to do some TLC testing for ergoline alkaloids before attempting any kind of psychoactive experimentation with this group of plants. The data at present suggests that it's not worth it, although a definitive answer depends on the species you have at hand.

I've done a bit of research on this and I've come to the conclusion that my yard (and other's) is full of Grandpa Ott (Ipomoea nil) and White Pitted Morning Glory (Ipomoea lacunosa).

The Grandpa Ott has deep blue or purple flowers and the lacunusa has many small white flowere. Both escape cultivation and become "weedy"" easily, especially Grandpa Ott.

There is some talk of desirable alkaloids in these, but the sparse references to them I found seem to point to it being considerably less than Ipomoea tricolor (Heavenly Blue).

So, I'm doubting that I have escaped Ipomoea tricolor and since tricolor is so easily grown, I'm not planning on messing with these.