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How Long Do Spiders Live – Exploring the Spider Life Cycle

What do you do if you see a spider in your house? You may try to smash it with a shoe, flush it down the toilet, or kindly relocate the spider outside. Or you may simply ignore it, thinking the life of a spider doesn’t last that long anyway.

Below, we explore the lifespan of a common household spider. We discuss how long do spiders live, what spiderlings are and more. This information will help prepare you for the next time you see one in your home. And if you’d like

Life cycle stages of a spider

baby spiders spiderlings

Baby spiders hatch from a spider egg sac and are called spiderlings. An egg sac may contain as many as 1,000 spider eggs! Since spiders lay eggs, you will never see a pregnant spider, but you may see a spider carrying her egg sac on her back. In other instances, mama spiders will attach their egg sacs in crevices or sheltered areas.

Spider eggs can hatch in just a few weeks if conditions are favorable (such as during spring or summer, when temperatures are warm and moisture is plentiful). Spider egg sacs may also “overwinter” or wait out the cooler weather in a dormant state before hatching.

When spiderlings hatch, they look like miniature adult spiders with eight legs, a head and a body. They are usually black, brown, or grey and don’t have any distinctive colors or markings. Spiderlings are not dependent on their mothers and will often start life alone. As soon as they hatch, they leave their siblings, looking for a home to call their own.

 

Spider lifespan

Spider life is a solitary life. Adult spiders do not live in groups or colonies. House spiders are not territorial or aggressive, but living alone gives them better chances of catching enough food without needing to share. They don’t need to eat daily and can survive long periods of time without food, but they will eat often if food is abundant. Spiders do need to drink water from dew drops, condensation, or other sources like a dripping faucet, leaky appliance or pet bowl.

Most of a spider’s time is spent waiting. Spiders wait patiently in their webs for a meal. Spinning a web does not take much time or effort for the common house spider, so they will abandon a web that isn’t catching many bugs, moving on to another location. Ideal locations for spider webs are areas where other insects may be found such as near a light, door, window, food or water source.

spider web lightAn average house spider may live for about a year. People are probably the biggest threat to a spider. Curious cats and dogs can also bring an abrupt end to the life of a spider.

You can take steps to prevent spiders in your home, but if you do find one, you may not want to try waiting to outlive it. Your best bet is either to keep learning more about household spiders and how to get rid of them, or start using a kinder form of pest prevention that is guaranteed to work.

71 responses to “How Long Do Spiders Live – Exploring the Spider Life Cycle”

  1. I have a new friend. Hes about a month old…at least that’s how long I’ve seen him next to my front porch light. He spins a great web and as a man terribly fearful of spiders, I’ve become very protective of this little guy. Can I take a picture and you let me know if I can help him, as fall and winter approaches?

    • Hi Joshua,

      We’re so happy to hear about your new friend, we would love to see a picture! For the best advice about how to look after local creatures, we’d suggest contacting your county extension office since they would be most familiar with local wildlife and conditions, but please keep us updated.

      Thanks for sharing!

  2. we had a large spider living near our garden also I named her Charlotte Charlotte would appear to sleep during the day but at nightfall she would be seen spinning her web she was there for a few weeks n now isn’t moving that’s why I looked up a spider’s life expectancy I hope she had a great life she brought me great joy as I watched her

  3. We have a lovely large spider in our garden whom we have named Seymour. He/she spins a web that is about 5 to 6 feet in diameter
    In the daylight it is impossible to see it. But when it gets dark, sure enough there’s Seymour in the web. We have told the gardener noy to walk in the area of the. Even though we cant see it in daylight.

    I hope Seymour will enjoy our garden as long as she wants to live with us.

    • Hi Nanci,

      What a lovely guest to have in the garden, thank you for sharing! I hope Seymour helps your plants grow and thrive, and protects you from mosquitoes too.

      Thanks for reading!

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