Q.My Sweetspire Has Some Red Leaves And Others Are Faded Green And Yellow
What is wrong with my plant? It is too early for it to start turning red for the fall isn’t it?

Certified GKH Gardening Expert
I would, carefully, inspect the shrub for insects or other pests. This plant is relatively carefree, so any issues might arise from pests. If this is not the culprit, then I would look towards soil pH. Here are some articles that will help:
https://www.gardeningknowhow.com/ornamental/shrubs/itea/itea-sweetspire.htm
https://www.gardeningknowhow.com/plant-problems/pests/insects
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm