How long do hornworms last?

At room temperature (roughly 72°F), most hornworms pupate within 3 to 4 weeks of hatching. At this point, they build a cocoon and start to transform into a moth. We suggest you don't order more hornworms than your reptile(s) can eat in a few weeks - otherwise, you'll risk them pupating or growing too large for your pet to eat!

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