Garden Spider Egg Sacs

In autumn months, garden spiders lay their eggs in silken sacs that contain between 50 and several hundred eggs. The garden spider’s egg sac is relatively spherical, although one end is narrower than the other. Covered in brown-colored silk, they are strong enough to withstand winds and attacks from most predators.

Young spiderlings overwinter within their eggs. In spring, they hatch and disperse. Garden spider egg sacs are nearly the size of adult garden spiders and are attached to webs. When spiderlings hatch, they are thus in close proximity to captured prey and will not go hungry. Female garden spiders die soon after laying their eggs and are not able to protect or assist their spiderlings.