In picture #1, I'm guessing the plant in the middle is some kind of rudbeckia (black-eyed Susan). The red-flowered plant ia definitely annual nicotiana.

Pics #2 and #3 are a weed.

Pic #4 appears to be nicotiana elata which sends up a 4 to 5 foot white-blooming flower stalk, smells wonderful and good in a night garden. Yellow/orange cosmos and taller pink cosmos are coming up around it.

Pic #5 is a weed.

Pic #6 is gypsophilla, annual baby's breath.

Lastly, pic #7 is a snapdragon.

Keep in mind, these are just my guesses. I'd feel better if someone else confirmed, as well.

I hope I'm correct because that was kind of fun. I love mystery plants. :)

the one with the yellow flower is a woodland poppy,.they will reseed
the one with the five or so leaves#3 i think.... I believe is a castor been plant will get very large

#5 might be castor bean, might also be ragweed, which creates allergy problems for lots of people
#2 - cheri's right - also called celandine poppy, "real" name is Stylophorum diphyllum

I googled Stylophorum diphyllum. On most images I found, the little yellow flower has 4 petals, the fruit looks like a pear and has hair on it. Mine has more petals (maybe a double flowering variety?) but the fruit looks like a long pod, without any hair. Is this a fancy variety of woodland poppy?

#2 and 3 are Chelidonium majus, double-flowered form, not Stylophorum diphyllum.

AB-Gardeneer is correct-
You probably received the seed from me- It will reseed like crazy if you let it- But I am like your husband in that I just cant seem to pull it all- It is too nice a plant with bloos all season- It will grow in very dry- shady conditions where most things will not-

I do hope you will enjoy it-

Julie

Julie: Thanks for clarify the mystery on #2&3! I do enjoy the dark green leaves and the bright yellow flowers. Now I know that it is shade loving, I am going to move it to my shade garden. I like the vigor of this plant.

On #6, the plant I am questioning is the one with small pink flowers, the flowers are larger than the baby breath in the background. These are two different kinds of plants.

I pulled the "castor bean" this morning after my husband went to work. :) I am allergic to ragweed. Cannot risk to let this plant to prove itself.

More mystery plant following:

#8: This plant has snail shell like node and never flowered.

#8 looks like a tiger lily to me.

#5 is Giant ragweed. It cannot be castor bean since it has leaves opposite of each other on the stem.

#8 I concur, tiger lily.

Yep, 8 is Tiger Lily and I bet you got that one from Julie too! I have one just like it :-) Mine didn't bloom the first season but it did the second, and it is worth waiting for! I am so like you.... I have a lot of plants that I got from previous swaps and that were somehow missing the tags. I planted them all in the same bed, then didn't pull ANYTHING that I didn't recognize as a weed. Eventually, some of the unknowns did turn out to be weeds, but I don't think I ended up destroying any wanted plants. Wait and See is a good option :-)

As others have said, #8 is a tiger lily. The little black seed balls(or whatever)will fall to the ground to make new plants but I think it takes a few years to amount to much. These lillies tend to transplant themselves along with other plants. We have moved peonies and hosta and both times the tiger lilly came with unknowingly. But it's kind of fun to get more when you aren't expecting it. I just dug them up and gave them their own place in the garden.

More mystery plants:

#9:

#10: This came the second year with an iris I bought from Linders. It looks like columbine to me. Can someone help me confirm it? When would be the best time to move it?

#11:

#12: This has similar leaves as #11, except they are opposite.

#10 definitely columbine.

#11 and #12 had me puzzled, as they both look like ragweed to me. So I went out and checked some I had pulled in the garden yesterday. To my surprise, there were both opposite and alternate leaf arrangements, and even on the same stems! So they are both ragweed, in my opinion.

No clue on #9, but my guess is that it is a flower.

I'm guessing #9 is some type of daisy, Ox-Eye perhaps?

When #1 and #9 blooms, I will report back.

When would be the best time to move that columbine? It is inside of the iris.

#1 has bloomed - It looks like forget-me-not.

Anyone know what is the following little yellow flower (the orange one is "Orange Profusion" I got from seed exchange. It has done really well in my garden. I love it)

#13: This is from the seeds I collected at our city hall. I'd love to know the name of it.

No bloom for #9 yet, makes think it might be a fall bloomer like some kind of aster.