Carnegiea gigantea (Saguaro) Seeds rare Cactus Seeds Pack of 20 seeds

Carnegiea giganteaOrigin and Habitat: Primarily in Arizona and in southern California just west of the Colorado River, south into Sonora, Mexico.
Carnegiea gigantea Altitude: From nearly sea level to approximately 1350 metres above sea level
Carnegiea gigantea Habitat: Sonoran Desert, where in the range is limited by freezing temperatures in winter. They are generally found growing on dry rocky slopes, upper bajadas, and well drained flats. Dense stands some-times grow on sandy flats (as near Los Vidrios, Sonora). Saguaros growing higher than 1100 m are usually found on south-facing slopes where freezing temperatures are less likely to occur, or are shorter in duration. Like many Sonoran Desert cacti, Carnegiea depends largely on warm-season rain, and west of the Colorado River, the amount of summer rain drops too low for survival. Because the mature plants use little if any soil moisture when temperatures are low, the increased winter rainfall to the west does not compensate for the dry summers.

Carnegiea gigantea Notes: A saguaro’s growth is extremely slow. After 15 years, the saguaro may be barely 30 cm tall tall. At about 30 years saguaros begin to flower and produce fruit. By 50 years-old the saguaro can be as tall as 2 m.. After about 75 years on average, it may sprout its first branches, or “arms”. By 100 years the saguaro may have reached 7,5 m. An adult saguaro is generally considered to be about 125 years of age. Saguaros may live at least 150 years. Giant Saguaros attain the grandest sizes, towering as high as 15 m or more. Saguaros rank among the largest of any cactus or desert plant in the world. The average life span of a saguaro is at least 150 – 175 years of age. However, biologists believe that some plants may live over 200 years. One of the largest saguaros known to exist possessed these amazing statistics: It lived 300 years, was over 12 m tall, had 45 arms, and weighed 13 tons! One saguaro produces tens of thousands of seeds in a year, and as many as 40 million in a lifetime of 175 to 200 years, but out of all the seeds that a saguaro produces in a lifetime, few will survive to adulthood.