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Illsstep 2017 Indoor Winter Grow

For my first time growing hot peppers, I decided to grow some jalapeños in the indoor grow area I set up a little less than a year ago. I have a few months free before I will need it again to grow on rooted cuttings (flowering shrubs mostly) prior to planting them outside, and peppers sounded like a good way to fill that downtime.
 
The grow area:
 
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At the bottom right is a humidifier, to attempt to keep the humidity up while the heat is running this winter. I decided to humidify the whole room the grow area is in, to try to maintain both decent humidity in the enclosure and good air exchange with the surrounding room.
 
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Missing is the small oscillating tower fan that usually sits in the front left corner; it is below at the moment, with the seedlings. The light is a 315 watt ceramic metal halide. I went with the 4200k bulb, as it better suits my growing purposes than the 3100k. 
 
Ventilation and air flow was a bit tricky in this sort of semi-enclosed area. I ended up using two window fans, pointing up to draw air up and out of the enclosure (and deflected away with the help of the angled pieces attached above). The oscillating fan also serves as an active intake.
 
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I built stadium-style risers to help even out the light distribution across the 3'x3' footprint. They don't completely mitigate the lower light intensities at the edges, but they help.
 
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What I'm growing. The freebies were a very nice and unexpected bonus, so I decided to go ahead and grow some of them too.
 
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The seedlings so far. All were planted on January 1. The BB's are all up (six total - 100% germination), and the Apache's are at 4/6 so far. They were slower to germinate, so I think I may still have the rest of those come up.
 
I have the seedlings on a heat mat (on styrofoam for insulation), controlled by a thermostat set to 87°. It's been keeping the soil temperature between 85° and 88°, which seems to be effective enough.
 
I am growing in what is essentially a nursery mix (heavily bark-based), and will be fertilizing with Foliage-Pro 9-3-6 weakly with every watering.
 
After the seedlings hit 4"-6", I plan to pot them up into the 5.5" pots that the stadium-style risers were designed for, and then grow them until they outgrow those pots. At that point, I will save the 2 most vigorous of each type and repot them into 5 gallon pots that should last them the rest of the winter. The extra plants I will probably try to give away.
 
Welcome.  The stadium seating is badass.  Is that just butcher paper wrapped around the outside of the rack?  Neat setup.  Jalapenos are a good start.  Just remember, every one of those silly shrubs you can't eat will be taking up space that could be filled with delicious chile peppers.  We have plenty of dealers around to assist with your new addiction.  :)
 
Nice setup!  Orca film looks like cool stuff.
 
My biker billy plant was a big producer last year.  The pods were excellent fresh and cooked.  They had a noticeable heat difference compared to my early jalapenos.  
 
Early jalapeños were another variety I looked at for this grow, but the Biker Billy variety sounded a bit more appealing.
 
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I moved the fan around to the front so that it will be moving the output from the humidifier towards the seedlings rather than away from them. The relative humidity under that light jumped 10 points, and the temperature dropped 5 degrees. This dropped the (approximate) vapor pressure deficit from 1.6 kPa to 1.05 kPa. The "ideal range" for most plants is supposed to be between 0.8 and 0.95 kPa, so this was a big improvement. I've had a very hard time hitting that range growing indoors during the winter due to dry air from the heating in my apartment, but with the humidifier running 24/7 I can keep close to (or a bit better than) what I'm at now.
 
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They are off to a good start! The bigger ones are the Biker Billy jalapeños, and the smaller ones in the back are the Apache jalapeños. Only 4/6 of those germinated, but I won't have room indoors for more than two anyway.

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Absolutely awesome humidity for growing indoors during the winter, thanks to an unseasonably warm spell of weather outdoors. The furnace has barely been running. I hope it continues!
 
Becareful with that kind of humidity indoors....condensation, mold, dry rot, pests and diseases are a few things to watch for with long term exposer....your plants look great :cheers:
 
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I moved them under the big light maybe a week ago. The Apache jalapeños are growing far, far slower than the Biker Billy jalapeños are, but look healthy regardless.

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I have had to leave the front panel off of the enclosure to maintain the correct humidity/temperature combination. With the panel on, the temperature rises by 5 degrees and that lowers the relative humidity by 10%. A small change, but it is enough to raise the vapor pressure deficit from 0.95 kPa to 1.45 kPa, which is outside the range I am trying to maintain.

Right now I am working on a way to increase the humidity inside the enclosure without raising the humidity in the rest of my apartment. Once I have that set up, I will put the panel back on.
 
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I built my humidifier for the enclosure. It uses an ultrasonic fogger in a big tub of water, and a waterproof 120mm fan to blow the fog through the tube into the grow area. The fogger and the fan are both plugged into a humidistat, so the humidification is now automated. And the reservoir is a 20-gallon tub, so I don't expect to have to fill it very often.

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I found that a cheap plastic intake hood simply snapped into the downspout extender that I used to pipe the fog into the enclosure. How perfect is that?

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They are growing nicely. I'm not sure if I'm going to top them or not. The light they are receiving is intense and multi-directional, and will give those lateral buds plenty of incentive to grow.

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The Apache jalapeños, despite still being smaller, are already starting to branch.
 
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Still growing. I've had some fungus gnats show up, which I haven't had to deal with in a while because the soilless mix I've been growing in is fast-draining enough that the top dries out pretty quickly. I think the latest batch I mixed is a bit more water-retentive. I've added a food-crop-safe larvicide to my watering regimen, and hopefully that will keep the population down enough to avoid root damage. I've also backed off on the watering a little bit, to encourage the top layer to dry out a bit more between waterings.

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First flower buds are forming! On all of the plants, actually.

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The Apache jalapeños are branching like crazy. A very different growth pattern than the Biker Billy's.
 
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I came home yesterday to find that my ultrasonic fogger was no longer producing fog. Bummer. I contacted the supplier and they are shipping me a replacement, which should be here Monday. I don't really want to unpack the humidifier and start it up in the meantime, so they will just have to deal with sub par humidity for the next couple days.
 
Thanks! I tried to make it look decent, since it is in the main room of my apartment..

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I took the stadium-style risers out of the enclosure and cut an extra piece of Orca film to line the bottom (it is a wire shelf otherwise). I repotted the four I plan to grow to full size in 5-gallon pots. The other six are just going to stay in there until I figure out what to do with them. Anyone near Bloomington, Indiana want some jalapeño plants?

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The root systems of the Biker Billy jalapeños and the Apache jalapeños, respectively. The Biker Billy's were already pretty root bound.

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This was odd. Has anyone seen this happen? These are two Biker Billy jalapeños. The first picture shows three branches on top of the plant, and the second picture shows three branches.. except two are fused together. About half of my Biker Billy's had this fused branch structure, and the other half had normal separation.
 
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First flowers have opened! There is pretty good air movement inside the growing area, so I am going to see if that plus the occasional shake of the plants will be enough for pollination.
 
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I took 18 cuttings from the 4 extra Biker Billy jalapeño plants, just to do something with the plants instead of throwing them out. I'll see what sort of success I have rooting them.

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One of the plants after. I'm going to hang on to them for now, even though they are becoming root bound, just to see how they respond.
 
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