Hey guys, sorry I haven't posted in a while. I have a lot going on lately so please forgive my absence. I want to share my experiences here involving these trees indoor with everyone, good and bad.
I have pictures that I need to upload when I get a chance so everyone can see what I have going on. I have since then purchased a large humidifier meant for a large room and placed this near my set up. I have the humidifier set at 50% humidity. The humidifier runs and shuts off as if it is reading at 50% humidity, but my digital meter in my set up only reads 28% - 30% humidity so one of these instruments is off or I'm missing something.
I also have documented moisture readings that I take either every day, or every other day, as well as documented notes detailing any changes in appearance, discolored foliage, dead foliage, new growth, and budding. Once I gather more data and I'm going to design some nice graphs showing what is going on and where the trees are going, whether they are just maintaining, increasing in health, or declining. I'm thinking about maybe purchasing a scale to weigh the trees as well. I'm using the trees that I keep outside as subjects to compare to the ones I have inside.
Boxwood - So far the boxwood has been doing amazing. When it first came in months ago it had just a very few select leaves that were discolored (red tips). Since I haven't had any discoloration since then, I'm going to guess that this would be sun damage prior to the tree coming into my possession. Please correct me if I'm wrong however in this. If it was root damage I would suspect that it would have spread out by now, but the opposite has happened. To date the tree has really shot out some impressive growth and lots of budding. It seems to be a very healthy green coloration and drinks well.
Juniper(s) - I have 2 junipers inside under these lights, and 6 outside (shimpaku and proc nana). So far the junipers I have inside have been doing way better than I expected. One I got in had some damaged foliage from shipping but has been coming around nicely with some decent buds emerging. The other juniper I have had inside now for over 5 months and it has been doing extremely well with nice foliage and lots of budding on the trunk and branches. I have pictures of this as well.
Ficus - I have a ficus under these lights as well and that seems to be doing great, which I expected though however so I don't have much to say about this since ficus is already known to do well indoors. If anything I caught myself not watering it enough and was tending to it the same way I would with the junipers and boxwood. Needless to say it appeared wilted a few times.
Fukien Tea - Same thing as above with the ficus. Again caught myself having the fukien tea on the same watering pattern as the junipers and boxwood. At one point I thought this tree was gone since the tree dropped about 95% of its leaves. Now the tree is back to full health with some great budding, nice full green foliage, and flowers. I never moved it from the indoor location either.
So that is where I stand currently and will keep monitoring all of this. I really think that with today's technology, certain parameters can be met allowing people to keep these trees inside that otherwise couldn't in the past. I'm also starting to see why the author of that article I posted earlier in this thread mentioned that he strongly believes the main reason people have dead junipers inside is because they over water them. I purchased a light meter as well as a moisture meter. These instruments have greatly helped me better understand, or at least point me in the right direction, what kind of set up is needed to maintain these trees inside. Digital-reading meters tend to be what I like more.
For light I've been aiming for 1200 and 2000 light readings. I purchased my light fixtures and bulbs from Todd Goode at
http://www.lightyourreptiles.com/. He has been extremely helpful, top notch support, and has grown some impressive trees himself indoors with the lights he has for sale.
For moisture levels I tend to water the Boxwood whenever it drops below an average reading of 4.0. Really though I like to water it more when it gets closer to 1.5 or below. I then water it with a mixture of 1/4 teaspoon of SuperThrive per gallon of distilled water and 1/4 teaspoon of Bonsai Pro 7-9-5 Fertilizer per gallon of distilled water.
For moisture levels of the Junipers I tend to water them with the same mixture mentioned above. I water them when their moisture readings read 0.0 and I take 4 readings per tree to make sure the soil is dry in a "north, west, south, east" locations around the plant so I know there are no pockets holding in moisture. The constant probing puts air in the soil as well.
If anybody has any questions, comments, or concerns then please feel free to share with me. Also if you see any errors in my set up or environmental parameters then please let me know so I can make those corrections.