there any way to make it grow back as tree? I had two Redbuds one which is still a beautiful tree. I'd like to bring the broken one back to match it.
I don't believe the tree will ever grow back to its original shape or stature, but it may send healthy shoots up and form a shrub. If you want a tree like the original, you may have to remove this stump and plant a new tree.
Here's a helpful article: https://www.gardeningknowhow.com/ornamental/trees/tgen/kill-zombie-tree-stump.htm
I have several Eastern redbud seedling( saplings?) which are 5 moths old and still only about 4 inches tall with 3 leaves each. Large leaves mind you but still only 3. It is my understanding they should be MUCH larger then this by now. The leaves also recently started turning yellow on the bottom tip. They are in a indoor ventilated room with an artificial light. Too much water> not enough? more N? less N? more of the other two? They still seem healthy enough other wise. All over plants in the room seem good. Thanks for any help.
These trees do not follow the same care routine as most other plants and trees. They are, also, very difficult to grow indoors. The problem is that they require a wet, indirectly lit, but bright area. Unwanted microbes (fungi and bacteria) will enjoy these conditions as well.
You will have to mimic the humidity and moisture of an understory forest. They like bright, but indirect light and moist soil. Don't let the soil dry out completely, but don't let it remain wet. about a half inch down should be all that dries between watering.
Keep fungicides around. They will contract infections, by nature. Biofungicides can help, here. These articles will offer some more information:
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
https://www.gardeningknowhow.com/special/organic/biofungicide-information.htm
These articles will give you some more information on the care of the trees, and growing trees in container:
https://www.gardeningknowhow.com/ornamental/trees/redbud/caring-for-redbud-trees.htm
https://www.gardeningknowhow.com/ornamental/trees/tgen/growing-trees-in-containers.htm
Now remaining leaves have dark patches which look llike a fungus? neighboring (not alba) redbuds seem fine.
Your redbud may be suffering from verticillium wilt, which is not good news. Here are two articles to help you understand and deal with this fungal disease:
https://www.gardeningknowhow.com/plant-problems/disease/verticillium-wilt-treatment.htm
https://ag.purdue.edu/btny/ppdl/Pages/WH_old/hot08/8-7.html
You may want to take a sample of a small branch to your closest extension service agent to be sure. Here's the info for you: https://www.gardeningknowhow.com/extension-search?zip=65559&radius=50&services_search_action=search&submit=Search
A seed from a neighbor's Oklahoma redbud landed in one of my outdoor pots and I think it is no tall enough for me to plant in my yard when is the best time to do that so the tree can succeed and not die from the transplant, also part of my yard is zoysia grass the other part is crab grass and weeds, what can I do to encourage the zoysia to spread and what can I use to get rid of the crab grass and weeds that won't hurt my shrubs and bushes
Planting a Redbud is best done in early Spring. This article will help:
https://www.gardeningknowhow.com/ornamental/trees/redbud/caring-for-redbud-trees.htm
This article will help with the control of Crabgrass:
https://www.gardeningknowhow.com/plant-problems/weeds/crabgrass-control.htm
I LOVE our redbud trees, they are beautiful in spring, and very appealing to the eye all year round. BUTTTT, they have soooooo many pods that drop and have created small redbud forests all around our yard. We now have maybe 4-5 red bud trees, and tons of little almost bushes from the redbud pods. We're planning to get rid of all the redbuds, but I fear I will be sad when they are gone.
That one will be totally up to you! They will, likely, continue to reproduce and grow in number. If this is something that you can tolerate, then keeping them is not a bad idea. With some diligence, the seedlings can be managed.
I have a 8 years old Eastern Red Bud tree that has its main trunk split open. How do I repair it, or it is beyond help? If I cut off one side, will the remaining portion heal?
These trees are susceptible to damage and disease as they age, and are to be considered short-lived trees. Unfortunately, repairing is going to prove difficult in a Redbud of this age. You can attempt to tie the branch back together, but it will likely not reattach. Removing the weaker side can help, but any damage to this species is likely to end up with infection.
Here are some articles that will help:
https://www.gardeningknowhow.com/garden-how-to/propagation/grafting/reattaching-broken-stems.htm
https://www.gardeningknowhow.com/ornamental/trees/redbud/caring-for-redbud-trees.htm
I bought a forest pansy tree from a private seller in winter last year. Each spring it has pink flowers but then the leaves come and they are only green - no purple colour at all. the tree is around 6 feet tall and in full sun.
Forest Pansy redbud should flower in spring, then emerging leaves should be reddish purple. The leaves then fade to green in heat of summer. In fall the leaves should turn yellow.
I would say the private seller may have his trees mixed up and sold you a different variety of redbud. Or, if it was a seedling from his Forest Pansy, it most likely would not reproduce true to type from seed.
https://www.gardeningknowhow.com/ornamental/trees/redbud/growing-forest-pansy-tree.htm