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2'x6' Grow Closet With 8 Tube 432 Watt Quantum BadBoy T5 Fluorescent Light - An Ongoing Log

I live in Las Vegas, and for a long time i've been wanting to try growing some full size vegetables in my house over the winter. I do have a garden in my back yard with four 4'x8' raised beds, but it can get down to 20 degrees here (with snow) in December and January. So during the cold season, growing Summer veggies like peppers, tomatoes, and basil indoors during the winter is the only option for me.

Since I had limited space in my house, I figured i'd pull out the wire shelving in one of my 2'x6' closets and hang an 8 tube fluorescent light in there (Quantum BadBoy T5). I screwed two hooks into the ceiling and hung it using two ropes with ratchets at the bottom so I can easily move the light up and down as needed. This closet was too small to use a light that generates high heat like an HID. There would also be no way to vent that type of heat properly without cutting holes in my wall or ceiling, so an HID was not an option. Since the closet was already painted white inside, I decided not to go through the hassle of trying to hang mylar.

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I'll be growing primarily tomatoes and peppers using soil. The tomatoes will be grown in these 5 gallon buckets. I'll drill holes at the bottom of the top bucket, then insert it into another bucket so it's able to drain. For peppers, i'll put them in smaller containers, maybe 2-3 gallon. They'll sit all around the tomato buckets along with some basil.

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As for the tubes in the fixture, there are four cool 6400k tubes, and four warm 2900k tubes. This should provide a good balace of foliage and flowers. I thought about using all 6400k at first, then switching to all 2900k for flowering.. but we'll see how this goes first.

According to the Quantum Horticulture site (they make the bulbs i'm using), here are the stats for the bulbs:

Bloom Bulb - 93.5 Lumen / per Watt for 2900 Kelvin
Grow Bulb - 88.Lumen / per Watt 6500 Kelvin
High Lumen Maintenance: 90% over 10,000 hours

The bulbs are 54 watts each, so that gives me 20196 Lumens from the Bloom bulbs, and 19008 Lumens from the Grow bulbs, which is a total of 39204 lumens for the entire fixture. The closet is 2'x6' and the fixture is 2'x4'. That gives me a total of:

-4900.5 lumens per square foot directly under the 2'x4' light

or

-3267 lumens per square foot across the entire 2'x6' closet.

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For the growing method on the tomatoes, i'll be setting up a "scrog" which means "screen of green". I'll put a grid with 4.5" squares across the entire closet, about 2ft up from the edge of the buckets. Once the tomatoes start hitting the grid, i'll train the branches outward along the bottom of the grid for maximum light exposure.

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So that's about it. I'll post my log here and we'll see what I can grow with 432 watts of fluorescent tubes :)
 
All peppers are now germinated :) Will be going into the buckets and under the floro light soon. I'll post pics once I get everything in there.

Without a heat mat they just take longer but will eventually get there. I never use a heat mat and germinate in my basement which is 65ish year round.
 
i think you will find that 400watts of t5's will heat that space fairly quickly. so i assume you will keep that door open a bit?
you dont have to sleep in that room do you? :lol:

I don't know...I have over 350 watts of T5s, and 2 35 watt T12 in a small closet running 24/7 and it doesn't get that hot...probably stays around 80F with the door shut, ~75 with it cracked or open. The 6-lamp T5 system doesn't really get hot either, it's only about 80F on top of the top surface of the light. It's warm to the touch but not hot.
 
Just hung up a layer of panda film along the walls, moved all the buckets in, and turned the lights on. I'm going to leave the seedlings in the cups until they get larger then i'll transfer them to the buckets. I'll also thin them to 1 plant per bucket of course. Feels good to make some progress. :)

I also received my heat mat so germination should be much faster next time. The potting mix i used in the buckets is Fox Farm Ocean Forest potting mix, and the soil i used in the plastic cups for germination is fox Farm Happy Frog potting mix.

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Good luck on the project. Looks like your off to a good start.

I did the same thing a couple of years ago and I learned the hard way that although I could fit 10 buckets in my closet I couldn't grow 10 plants.

It was only 6 weeks after they started taking off I ended up having to pull all, but 2 plants out of the closet. I was hoping to get some good growth, but in 8 weeks I had 2 plants that where 3' tall and around 4' wide EACH so I could only keep 2. I started off with a a 400 watt MH and left the ballest outside the closet to keep heat out and just used a circular fan to keep the air moving.

At around 8 weeks I switched over to a 400 watt HPS and by week 12 I was picking quit a few pods. My only problam is my closet was just too small and electricity cost about $22 extra month to run the lights for 10 hours a day.
 
Good luck on the project. Looks like your off to a good start.

I did the same thing a couple of years ago and I learned the hard way that although I could fit 10 buckets in my closet I couldn't grow 10 plants.

It was only 6 weeks after they started taking off I ended up having to pull all, but 2 plants out of the closet. I was hoping to get some good growth, but in 8 weeks I had 2 plants that where 3' tall and around 4' wide EACH so I could only keep 2. I started off with a a 400 watt MH and left the ballest outside the closet to keep heat out and just used a circular fan to keep the air moving.

At around 8 weeks I switched over to a 400 watt HPS and by week 12 I was picking quit a few pods. My only problam is my closet was just too small and electricity cost about $22 extra month to run the lights for 10 hours a day.

Wow your pepper plants got HUGE. Even the pepper plants I grow outside here in vegas only grow to about 1ft wide and 2-3ft tall. I used the squarefoot gardening method and plant 1 pepper per square foot My buckets are 12 inches wide so I figured it would be plenty of space. I guess we'll find out hah.

I calculated that it would cost about $22 per month to run this light 16 hours per day, so it sounds like my rate is slightly lower than yours. I don't know if i'll average out to more than $22/mo worth of peppers and tomatoes in this closet, but a big chunk of the value for me is just the experience, and being forced to eat healthier, and go out to restaurants less often.
 
Well those are small peppers. It may have been a bit hot in Vegas which caused the short growth. I thought mine even at 5' where about avg. I've seen post here on the forum where peppers are 10'+

I know my outside peppers didn't get as big as the inside ones, I can only guess that it was because they where not getting as much light nor were the temps perfect. I think inside it was a lot cooler in the day and warmer at night so my plants did a thrive and grow fast. Plus the MH buld I was using gave the plants 39000 lumans and the HPS was around 45000.

What type of soil are you using and what type of ferts do you provide them? I had a bi-weekly fert and weekly foilage feeding of worm tea. I have never seen TS in the stores so I couldn't say what the cost per lb was, but I know I was picking more than $20 a month in fruit (however that was only when they where fruiting).
 
What type of soil are you using and what type of ferts do you provide them? I had a bi-weekly fert and weekly foilage feeding of worm tea. I have never seen TS in the stores so I couldn't say what the cost per lb was, but I know I was picking more than $20 a month in fruit (however that was only when they where fruiting).

I germinated using Fox Farm Happy Frog potting mix, and will put transplanting them into the buckets which are filled with Fox Farm Ocean Forest potting mix.

As for the nutrients, I haven't decided 100% yet. I still have some time to think about it since they will be fine in just the Ocean Forest soil for a while. I wanted to go full organic so i was thinking of using either the time release dry fertilizer from Espoma called Garden Tone, or the General Organics line of liquid fertilizers. You can read more about them here:

Garden Tone:
http://espoma.com/p_consumer/tones_garden.html

General Organics line:
http://www.generalhydroponics.com/genhydro_US/biothrive.html
 
Soil sounds great and if the temps are right you should easily grow out of that closet. Not sure how many lumens your light is putting out or the spectrum of the lights, but I wouldn't use anything time released for ferts. Just do a controlled liquid fert so you know exactly what the plant is getting and can adjust accordingly.
 
Week 2 Update:

Things are looking good. True leaves are up and i thinned out a couple cups today after I took these pics. I decided to go with the General Organics line of nutrients. I contacted them and requested a sample box that contained some smaller bottles of everything in their organic line, so they should last easily through this whole closet grow.

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Week 3 Update:

Things are still going nicely. I'm stil waiting just a tiny bit longer to thin them since a few cups didn't have an obvious winner yet. I'll thin them by tomorrow no matter what though. I gave them a light dose of the organic fertilizer for the first time today. I forgot to poke holes at the bottom of a couple of my pepper cups (oops), so the leaves started curling a bit, but i recognized that right away and poked more holes at the bottom of the cups. The leaves are already starting to go back to normal so that wasn't a big deal.

For the fertilizer, i started following the "week 1" line on the feeding chart I posted below, with 5ml bio root, 5ml biothrive grow, 5ml CaMg, 2.5ml bio weed, and also added 15ml of the diamond black. The reason i'm starting their week 1 feeding program at week 3 is because I already started all the seeds in fox farm soil which is already a very good potting soil. I also don't usually like to use much fertilizer (if any at all) while the cotyledons are still nice and green. On the next watering i'll just use plain water again, then after that, i'll probably move to their week 2 feeding schedule.

I have a min/max thermometer in here as well, and with the fan on it hovers around 80 degrees during the day, and 73 at night. I tried turning on the fan off to see how high the temp would go, and it went up to 86.


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Week 4 Update:

Couple days late with my update, but here's where everything is so far. I've been fighting some pretty low humidity (around 20%) which is caused a couple of the lower leaves to look a little rugged, but overall everything is doing pretty good. I filled up some containers with water and hung rags over the edge in front of the fan, which increased the humidity about 10% or so. I also ordered a humidifier which should be here on tuesday. It's been pretty cold outside lately, so i've kept the window open to get some cool air into the room.

My red robin tomato and gardener's delight tomatoes are already starting to get flowers. I think i'll just let them go instead of pinching them off, that way the plants don't get too huge. The red robin is only supposed to get up to 12" high anyway. Another nice thing I noticed is that my 6" pots fit perfectly into the space between my buckets, so I moved my basil pot right there as you can see in the pic.

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Just foliar sprayed everything with a diluted liquid kelp mix. This usually makes the plants really perky.
 
This is a very informative thread, thanks for keeping it updated.

I keep my seedlings in a double cup setup with holes in the cup that holds the plant. I add a couple of marbles to the overflow cup to create some space for the excess water. Do you have something in your overflow buckets to create holding space for the excess water?
 
This is a very informative thread, thanks for keeping it updated.

I keep my seedlings in a double cup setup with holes in the cup that holds the plant. I add a couple of marbles to the overflow cup to create some space for the excess water. Do you have something in your overflow buckets to create holding space for the excess water?

I didn't put anything else in the bottom bucket. There is a gap of several inches between the upper and lower buckets, which would hold a pretty good amount of water if I ever had a lot of overflow. I don't expect very much overflow though. With the Foxfarm soil If I overwater, it will start getting too compact, so right now i'm only giving each bucket about 1/2 gallon per week.


 
I'm jealous you got your jalapeƱos to germinate so easily but then I've only tried w/ some grocery store- bought seeds to no avail. I'm thinking that I'll try again in the early spring and, with success, overwinter them.
 
I'm jealous you got your jalapeƱos to germinate so easily but then I've only tried w/ some grocery store- bought seeds to no avail. I'm thinking that I'll try again in the early spring and, with success, overwinter them.

Jalapenos have never given me much trouble, but it's the poblanos that have really been a pain for me. Last time i tried to germinate about 8 poblano seeds, and only one came up. I think it's time to get some new seeds. The pack I have is only 1 year old though.
 
2 more things i've learned recently:

I looked up the water quality report here in Las Vegas, and it's rated as "Very Hard" with a PPM as high as 475. That's really high. There's already plenty of calcium and magnesium in my water, so that means i'm going to stop using the CaMg bottle from my General Organics line of fertilizers. Too much can end up causing a lockout of other nutrients, like potassium. This would compound the issue i've already been having with low humidity, which can also cause low potassium. I've already seen a bit of purpling here and there, so stopping the extra CaMg supplementation will probably fix that.

Another thing I realized is that I could have probably gotten away with using 2-3 gallon buckets in the closet instead of 5 gallon, which would save a bit of soil. I'm just so used to having to use a minimum of 5 gallons when I grow outside, otherwise my plants in containers would get cooked during Summer time. Also smaller pots would allow me to add fresh water and fertilizer a bit more often.
 
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