Does it have seeds, I thought it was safe to compost things without seeds, but then composted baby tears, they have no seeds, yet it became a super invasive weed. I still can't get rid of all of it and hours of work for nothing.

Gooseneck Loosestrife, "Lysimachia clethroides", can be invasive, but the literature says mostly by rhizomes rather then seed. If the flowered stems are buried deep in your compost pile most of the seeds that may germinate most likely will be either killed off (heat is not necessary) or will try to germinate and die for lack of sunlight.

Tropical: Not sure about your Baby tears, the other discussions seem to indicate failure to thrive, and trying to find some for terrariums.?? Perhaps you should reverse the thought pattern and pot some up to give/swap/sell.
Just a thought: when I can't get rid of a small weed I usually assume it is a wind borne annual.

Kimmsr: Again I Thank you! (I read your advice in many places, and almost always find it useful) I am just starting a new pile, so the bottom is quite available. I will just have to make note to test in a pot before general spreading.

Noooo, I will make a weatherproof sign, because who knows if I will consult my notes two or three years down the road. ...Or if DH or DTB will consult Me before "helping"

These baby tears were not store bought, they came to me as weed, I thought oh how cute and encourage them, but they took over, and so I composted them. Big mistake, and I hot compost, they starting coming up everywhere. It is hard to pull them once the are more mature, and the root is set in. If anyone wants them I still have tons so contact me. I can hook you up.

This post was edited by tropical_thought on Sun, Aug 3, 14 at 12:50

The above photo was before I removed them, again and again, they come back and they block water to the plant roots. I have been removing them painfully for three years, and my suffering seems like it will never end. The get set in under the plant base and I can never get them all out of there. I have to dig up some of my plants to remove them and replant, and I have not gotten around to doing all the work. Just saying it was not worth composting baby tears.

I had a huge old patch of gooseneck loosestrife that was so pretty in bloom and so unruly after. Decided to pull it all out one day after a good soaking rain. Took less than an hour to remove a 12 X 20 area, but after 4 years have only seen one lone straggler. Surprised that more didn't come back. Wish I had the same good luck ridding my beds of the horrid Chameleon plant (houttuynia cordata) ! ! !