24 to 36 Inches per Year Click to see full answer. Considering this, how quickly does a redbud grow? Growth Rate Redbuds grow at a moderate rate, about 7 to 10 feet in five to six years. They tend to be short-lived, often declining from disease after about 20 years.Furthermore, how deep are redbud tree roots? In late April or early May, plant the treated seeds in a well prepared seedbed at a maximum depth of 0.2 inches. Very young seedlings which have sprouted around parent trees are easily moved when they are small. Eastern redbud develops a deep taproot that grows quickly the first few years under conducive conditions. Similarly, how tall do western redbud trees get? Western redbud grows 12 to 20 feet tall, although it can be kept more compact with annual pruning. One tree in Santa Rosa stands 45 feet tall with a trunk circumference of 71 inches, according to Cal Poly.How do you plant a western redbud tree? Site, Spacing and Time to Plant Choose a site with full sun or light shade and well-draining soil, ideally with a pH of about 7. If you’re planting more than one redbud, space them 12 to 15 feet apart and leave about 10 feet between the tree and any structures.