p eriod between blooms and then leaves?
There can be! Blooms are a good sign, and patience with proper care will reward you with a beautiful tree for most of the year.
This article will help with the care of the tree:
https://www.gardeningknowhow.com/ornamental/trees/redbud/caring-for-redbud-trees.htm
how to start a red bud tree
This article will give you some information on how to start trees from cuttings:
rs and then it stopped, like it froze in time. What happened to my tree? There are a thousand buds that never bloomed.
If this is in the open, it is likely receiving too much sun. These trees are better suited for shady spots. If moving the tree to shade is not an option, then you may need to install a shade cloth to prevent the tree from receiving too much sun.
This article will help you with their care:
https://www.gardeningknowhow.com/ornamental/trees/redbud/caring-for-redbud-trees.htm
Redbud tree bloomed then we got a late frost. All leaves are gone but branches are still flexible. Do you think it will come back?
Yes. They will come back just fine.
Here is an article that will help you to grow the tree:
https://www.gardeningknowhow.com/ornamental/trees/redbud/caring-for-redbud-trees.htm
My Rising Sun Redbuds were planted in 2018. Both were beautiful in 2019. Now, possibly due to a late frost (?), one Redbud lost all its leaves. We cut the limbs back to living "tissue," but no sign of life. The other Redbud is struggling. Some limbs are dead. It has small foliage on the top half. HELP.
Unfortunately, your photos did not come through.
They are pretty tolerant to frost, surviving down to zone 4. They are, also, very susceptible to disease from wet weather. The more sun that they receive the more sensitive they are, since they are best suited for shady areas.
Unfortunately, without seeing the damage, I can't really give a good diagnosis.
You can contact your local extension service for soil testing, and disease treatment. They will be able to assess the situation and help you to correct it:
2) Seems to be a micro-climate issue. It has only 2 branches with leaves this spring. What can/should I do with it? I've heard that if they get a nice long growing season this will not happen. But if the growing season is cut short there is more die-back in the spring. This tree is about 3' tall, should I move it? Maybe a warmer spot where there is more protection. Could I put this one in a large pot? Should I cut the die back part off? Any suggestions would be appreciated. Thanks a lot, love this tree.
Unfortunately, your image did not come through. The cold does not bother them, and they can survive quite a bit of warmer weather, as long as they have a winter.
What does happen is infection. They are short lived trees, less than a few decades, and are very susceptible to diseases. Because they prefer partial to deep shade, and moist soils, they are in the perfect environment to contract infections.
Your best bet will be to make sure that it gets plenty of shade during the day, and dries out just a little between waterings. You will need to treat with fungicide, or bactericide, depending on the type infection that has plagued the tree. I recommend biofungicides. They are living microbes that will actively seek infections to consume. Sometimes, they just outcompete bad infection.
Here are some articles that will help:
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
https://www.gardeningknowhow.com/special/organic/biofungicide-information.htm
https://www.gardeningknowhow.com/garden-how-to/info/homemade-fungicide.htm
https://www.gardeningknowhow.com/garden-how-to/info/applying-bactericide-to-plants.htm
https://www.gardeningknowhow.com/ornamental/trees/redbud/caring-for-redbud-trees.htm
It was sent in two pieces. The branch is detatched from the bulbs. Is that normal?