Picking up where we left off… At 3 weeks into flower (16 since germination), everybody seems content. Pistils are poppin’.
Plant B is showing signs of mild chlorosis, but nothing major. As the “runt” of the litter, she’s always been a bit shy.
Plant A is as hearty as ever.
Jump ahead another week (4 weeks into flower {17 since germination}), and both plants are, as expected, about one week more mature. 
:
Here they are, huddled together in the confines of their grow closet:
Plant A is doing fine:
As for Plant B, I’m starting to be concerned about her color. …Worrying I might be headed for a repeat of what happend with the Venom, which went four weeks into flower on my first grow, and then took a dramatic turn for the worse. I don’t like watching leaves get progressively lighter; it’s like being subjected to slow motion torture. On the other hand, I appreciate that LITFA is a crucial ingredient in the most successful grows.
These plants have had almost identical treatment ever since the last up-potting. I ~did~ mix some Alaska Fish Fertilizer and cal-mag into the bottom layer of soil when I up-potted Plant B, which I think may have made it a little hotter than the soil for plant A. As you may recall, Plant A was up-potted into fabric earlier than B, because it was thriving, while B was initially relegated to a smaller plastic pot.
Any way, I’ve been reading a lot of posts in the “sick plants” and “help me diagnose this” category, to see if I might find a solution. Of course, my natural inclination when seeing otherwise healthy-looking light green leaves over the entire plant is that it wants more nitrogen. But in this case, I don’t think that’s the issue. The fish fertilizer and worm castings and tea put into this soil may actually be overwhelming Plant B.
I don’t test the soil’s ph, so I don’t know that crucial variable. When I water these gals, I use distilled water. I’ve probably gone too heavy with the tea, since I was using that almost exclusively (rather than alternating with just plain water) for the past few weeks.
I decided to stick with LITFA, and carry on as though this is just the way Plant B wants to look. You Be You, B!
…Carrying on, at this juncture of the grow, means shifting toward feeding the blooms. I top dressed both plants with some Dr. Earth Flower Girl and worm castings, and watered it in with compost tea with a dash of cal-mag added.
…Which brings us to Week 18 (five weeks since the flip to flower). The bud sites are starting to get frosty.
Unfortunately, my simple solution to maintaining humidity (a towel draped over a shelf resting in a pot of water) has not been keeping up with the dry air of late autumn heated by a gas furnace (and augmented in the grow room by an electric/oil radiator). This worked well last year, but the grow room has been getting way too arid lately. I saw humidity levels as low as 29%. Whenever I’d run the exhaust fan, whatever humidity there was would be sucked out even more. I’d like to keep the exhaust fan running, since that’s what brings in the fresh air.
I’m aiming for humidity in the mid-50% range at this point, but rarely seeing it that high. So I upgraded to a longer towel, which now drapes over the water in sort of a cube-shape, to provide a lot more surface area. (Compare the red towel in the latest photos to the blue one in earlier photos.) Insignificant change? Maybe. I’ve ordered a humidifier too, just in case. But humidity levels with this NEW AND IMPROVED evaporative humidifier have been at least 10% higher than with the last one. I’m running the exhaust fan, and humidity is currently at 45%. (The outdoor humidity is higher too, since it’s a drizzly day. I’m sure that’s a factor too. It has been a very dry few weeks.)
On to the photos…
Group shot, week 18:
Plant A:
Plant B:
As you can see, Plant A is chugging along without too much to complain about. It has had a few of the larger fan leaves turn yellow, and there is a little bit of nutrient burn on some of the leaf tips. But she seems to be pretty healthy, for the most part. I pluck off the decomposed leaves once they’ve given their all.
Poor old Plant B has had a tougher go of it. She seems to be greening up a little better, but is showing quite a bit of nutrient burn. I gave her a foliar feeding of banana peal tea, mid-week. (Picked four banana peals out of the compost bin. One of them had coffee grounds stuck to it. I shook some of them off, but not all, and boiled the peals in water. Sprayed onto the underside of leaves at room temperature, after lights off. …Provides a quick boost of potassium.)
I’ll be watering both plants with plain old distilled water (no more tea) for the next few waterings, at least. They get watered every three days.
Thanks for reading, and for offering any helpful advice!