Overwintering Spider Egg Sacs

During the Fall season, each female garden spider leaves us a wonderful gift in the garden.  She will create a very distinctive egg sac that can be hidden in plants or hang in the corner of a porch.  The sac is brown and pear shaped, supported by strands of web attached to branches or structures.  Hundreds of eggs are inside and although they hatch in late fall, the spiderlings will stay in the sac until the spring.  A large number of spiderlings will not survive due to predation and other factors, but a few will continue development to adorn your garden in the following season.

Egg sac are often hidden in plants. Photo by Beth Bolles, UF IFAS Extension Escambia County

.If you did have a garden spider in your landscape this summer, just be a little more careful when maintaining plants. You don’t want to accidently remove the overwintering egg sac.  Although this large spider can be startling for many people, they are not aggressive and are considered beneficial in the garden.

Yellow and black garden spider are common in the garden. Photo by Beth Bolles, UF IFAS Extension Escambia County.
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Posted: November 24, 2025


Category: Florida-Friendly Landscaping
Tags: Beneficials, Gardens, Spiders


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