I dont have personal experience, but these are photos I took of the "Rising Sun" Redbud at my local garden center.

Bonnie, the new growth is the brightest color. That is why last summer only the one oddly fast growing branch was bright. I have a number of redbuds but haven't really paid THAT much attention to their growth spurts. I bet they all show "rising sun" colors in the spring and it is a bit more subdued later in the year.

I've noticed that if there is a late freeze after they have budded out the leaves will just stop growing and stay whatever size they were when the cold hit. It took a good month of warmer temperatures for mine to start adding size to the leaves again. This happened to my largest, most exposed tree while the more protected ones didn't skip a beat. It was a little strange and did give me pause, but it's since recovered and has nice larger leaves now.

Isn't this a bit too excessive for a tree that needs well drained soil ? https://www.grimmsgardens.com/plant-of-the-week-redbud-the-rising-sun/ How to Water Your Redbud After Planting Newly planted trees need to be watered daily for a few weeks after planting. After you have your tree in the hole, use a garden hose to water it in. Stick the hose into the bottom of the hole from the side, and turn on the water. This will help the soil to settle around the root ball and prevent air pockets. Once the water starts bubbling up out of the hole, move the hose to the other side of the hole and repeat the above step. Turn off the hose and spread soil into the hole where it has settled, until it is at the original soil level. Water your tree once daily with a hose on a trickle for 10 minutes. Do this everyday for 2 weeks when the temperatures are 65 degrees or hotter. After 2 weeks, cut watering back to every 3 days; do this for 2 more weeks. After 2 weeks of watering every 3rd day, cut back to 1 time per week for the rest of the year (through January if the temperatures are above 40 degrees and there is no snow or rainfall). If you get significant rainfall (1″ per day or week) at anytime during the year, do not water during those weeks.