My devil's backbone plant keeps losing it's leaves. Why could this be happening?
This can have several causes. Too much light can cause this as could chilly temperatures. They will only survive in zones 9 and 10. Over-watering is another possibility.
Here is an article that will give you more information on the care of these plants: https://www.gardeningknowhow.com/houseplants/devils-backbone/devils-backbone-plant.htm
How or can you grow a devils backbone outside?
These will only grow outdoors in zones 9 and 10. If you live outside of this tropical region, then your only option will be indoors. This article will give you their general care requirements: https://www.gardeningknowhow.com/houseplants/devils-backbone/devils-backbone-plant.htm
It's black on top but the bottom is brownish-green.
Unfortunately, your photo did not come through. If you see green, it might be worth saving. However, there are a few things to keep in mind.
These plants are only suitable for zones 9 and 10. The USDA zone that you have provided is invalid, so I can't see what the temperatures are like in your area. Likely, if you are seeing damage, then it is not hardy in your area.
Digging a plant up that is already damaged will likely kill it. If this were in container, and able to be moved without disturbing the roots, then there is a better chance that the plant can survive. In ground, there will be so much disturbance that it will add heavily to the stress of the plant.
Still, it can't hurt to try to save it. The worst that can happen at this point is that the plant dies, which will happen if left in ground, as well.
This article will help you to care for the plant: https://www.gardeningknowhow.com/houseplants/devils-backbone/devils-backbone-plant.htm
I’ve tried uploading a picture...it seems to fail
They might be getting too much light! They will want quite a bit of shade, and no direct light as the temperatures warm up.
Make sure that the soil does not retain water for more than just a couple of days, as they need high airflow to the root zone. This can be achieved with a cactus mix, or cactus and orchid mix, together.
Here is an article that will help you to care for them:
https://www.gardeningknowhow.com/houseplants/devils-backbone/devils-backbone-plant.htm
What did I do wrong? I feel like I overwatered, if so what do I need to do?
It does seem to have damage from overwatering. I would start by potting into fresh, well draining soil to make things easier to correct. If you get the soil moist but not sopping wet before you plant, it will keep from overwatering the first time after transplant. Once you do water for the first time, make a solution of 1 tablespoon hydrogen peroxide to 1 cup water. Water this in once, and let it work in for a week or so. Make sure to let the top 2 or 3 inches of soil dry out almost completely before watering again.
The old leaves will not recover, but new leaves should be free of infection. Once you see new clean growth, prune off anything dead. If the plant still seems infected in the new growth, then do the treatment one more time.
https://www.gardeningknowhow.com/houseplants/devils-backbone/devils-backbone-plant.htm
How do I get white back in leaves?
Once the entire plant is green, there is no going back. Typically, when you see stems reverting to green, removing the stem can sometimes prevent it from taking over.
This article should help: https://www.gardeningknowhow.com/plant-problems/environmental/variegated-plant-problems.htm
I do? I water them once a week, mist them daily, and they are indoor with bright Indirect sun
This can happen with stress, and with age. It is very likely that the plant will not regain its upright stature, or at least not the existing foliage and not fully.
What you can do is prune each branch by about 1/3. Or if that makes you uncomfortable, prune just the tip off. This will promote new growth. Please take care, as the sap will be highly irritant to skin for many people.
Once you have a fair amount of new growth, you can trim out older branches, and let the new growth take over.
Try to give it bright light without being direct light. The brighter the better, without exposing it to direct sunlight.
Last, make sure that the soil is well draining. They won't tolerate remaining wet for too long. Take care not to overwater these.
Here is an article for more information on the plant:
https://www.gardeningknowhow.com/houseplants/devils-backbone/devils-backbone-plant.htm