Pics #1&2 look like the rapacious Campanula Rapunculoids. If it is, and you let it be for a short while yet, it should produce a tall raceme of lavender blue bells... although some find them pretty enough, you'll want to pull it up before the flowers come even remotely close to maturing and scattering hundeds of seeds. If I'm right, this will wreck havoc in your garden and you'll be pulling them (like I am) for years to come.

I have to disagree with homehydro on this one. You should probably start over unless you feel like you cannot afford to do so. The pH being wildly thrown around has surely adversely affected plenty of those seeds. I have a hunch that quite a few may not even sprout (although I could be wrong). If you want less headache, less worrying, and a higher probability of success, restart. There are already so many "ifs" in hydroponic growing, that if there is any way you can block a probability and make it a definite, you should probably do it. The only reason NOT to would be for saving cash. Also, about the rockwool cubes: I would soak them. Some say you need to, others say you don't. I say you most certainly should soak the rockwool cubes in a pH balanced water. In fact, I reccomend soaking them in tap water or RO water for say 10 or 15 minutes. Pull them out of that water. Get some new water, and make sure it is as close to 7.0 pH or lower as you can get it. Soak them in this water for 45 minutes. That should do it, and honestly you will be better off because your pH will already be shifty, especially if you are using hard tap water. Using this method of pre-treating the rockwool cubes, you wil have less trouble in the long run! If you don't want to mess with getting a pH perfect solution, you can actualy purchase rockwool conditioner that apparently many people find to work great. Some of it even includes a great balance of nutrients for your seedlings. Theres my 2 cents!

I've taken cuttings in the spring time, right before plants bloom. That's what I was told to do. I have done this more than once and have always had the same results.. The average success is way less than poor.. 3 out of 20 rooted. On the other hand, my neighbor cut off some of the side brances that kept poking her when she was mowing her lawn in August of 2005. I picked up 15 of them and decided to just stick them in a pot with just good dirt, no rootone either, cut them back some (12 inches) and pinched off the growing tips so there was only 3 leaves on each side shoot, watered them good and set them in the shade of one of my bigger forsythia. That's all I did. As far as watering goes, every time I watered my flower beds via rainbird sprinklers, these cuttings got watered throughly (5-6 hours at a time). This spring, 3 died and the other 12 are blooming up a storm and growing like crazy.

I'd like to see what you decided on, too. My first thought was that the bumped-out closet actually dealt with the issues pretty well and offered storage -- maybe you could just recreate it. But if you don't mind spending some money on it . . . Hire a finish carpenter and create a built-in that protrudes into the room to the extent of the existing bottom "step". Tear out the existing door frame to allow use of the entire width of the steps. Use drawers on the lower portion where the fronts are flush with the front of the step (not the wall). Then the upper section is used for hanging clothes like before. Since the whole thing is built in front of the existing opening, you'll be able to have a nice square opening -- maybe with double doors that open to the hanging area. The end result would be something like the linked picture, but narrower, and with the existing first "step" as the base. Here is a link that might be useful: [built-in armoire[(https://www.houzz.com/photos/belmont-ma-built-ins-traditional-bedroom-boston-phvw-vp~3673050)