The Lindstroms of Mesa said the saguaro cactus broke apart Saturday morning and cost $3,000 to remove, KSAZ-TV, Phoenix, reported.
The couple said two arms of the cactus hit the shed outside of their home before hitting the house itself. They said the damage includes a smashed computer and ripped-out wiring for their telephone and cable.
They said the body of the cactus stayed upright by leaning against a telephone pole.
The Lindstroms said Friday's monsoon may have contributed to the cactus breaking apart.