Are Saguaros Slow Growing?
Yes, they are slow-growing. Here, let’s check in with the National; Park Service:
It can take 10 years for a saguaro cactus to reach 1 inch in height. By 70 years of age, a saguaro cactus can reach 6 and a half feet tall, and will finally start to produce their first flowers. By 95-100 years in age, a saguaro cactus can reach a height of 15-16 feet, and could start to produce its first arm.
NPS Photo. Saguaro Cactus can grow to heights of 45 feet
