I throw my arms up in the air sometimes…Saying ayeoh, I’m a saguaro. 🌵 Lookin’ sharp! The average saguaro ("sah-wah-ro" or "suh-wah-ro.") has about five arms and is about 30 feet tall. A saguaro's arms usually begin to grow only after it reaches 15 feet tall and around 75 years old. Did you know the outside skin of the saguaro is smooth? Inside the full-grown saguaro there are two-inch spines, giving the saguaro the pleated effect that you see from the outside. Those pleats allow the saguaro to expand as it absorbs water. Image: Saguaro cactus with several arms at saguaronationalpark, Arizona. NPS #saguaronationalpark #saguaro #cactus #arizona #nationalpark