The average life span of a saguaro is probably 150–175 years, but some plants may live more than 200 years. Saguaros begin to produce flowers at around 35 years of age, and reach adulthood at about 125 years of age. In drier areas, it may take up to 100 years before the branches appear. Yearling saguaro, Cactus Forest, Saguaro National. In Saguaro National Park, a saguaro grows between 1 and 1.5 inches in the first eight years of its life branches normally begin to appear at 50–70 years of age. A newly sprouted saguaro seedling in the Cactus Forest at Sa- guaro National Monument (east). For the present-day Tohono O’odham, believed to be descendants of the Hohokam, the saguaro is a sacred plant, used for both ceremony and sustenance. Archeological evidence indicates that the Hohokam people of the modern-day Tucson area used the saguaro in their daily lives. Saguaro flowers, fruit, and flesh variously provide nectar, moisture, and food for birds, bats, mammals, reptiles, and insects. Small birds excavate nest cavities inside the saguaro’s pulpy flesh, and large ones build stick nests among its arms. You can plant them together, as they do not demand extra individual care. Feed with a balanced liquid plant feed every 2 to 3 weeks. Allow the compost to dry out slightly before watering again. Saguaro cacti pair well with other species, agaves, aloes, and yuccas. Water moderately when plants are in growth (from March/April to September), but more sparingly when dormant once or twice a month may be sufficient in autumn and winter, depending on the temperatures plants are grown in. Saguaro cacti are highly important to both animals and people. Plant your Saguaro cactus in well-draining potting soil and feed it with a balanced cactus or liquid fertilizer during their growing season. Composed mostly of water (75–90% of the plant’s mass), saguaros may weigh more than 6 tons. In May and June, white flowers bloom, followed by bright-red fruits that may each contain up to 2,000 small black seeds. The body and armlike branches of the saguaro are pleated and ridged, with hard spines and bristles. Its range is limited by freezing temperatures and altitude. The saguaro cactus grows only in the Sonoran Desert of the U.S.
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