Monarch Rearing Kit


SKU: 47920 Category:


**We are now accepting PRE-ORDERS for 2022 Rearing Kits**

This Monarch Rearing Kit contains fourteen to sixteen first to third instar monarch larvae (caterpillars) and rearing instructions. The larvae arrive in small cups and must be transferred to milkweed plants or leaves to feed.

Please make sure you have fresh milkweed available before your caterpillars arrive. Each caterpillar generally needs 18 inches of milkweed to pupate. Pupation will occur in about 10 days and adults will emerge 10-14 days after pupation.

These butterflies can be used for classroom instruction, student projects or to start a classroom breeding population.


Shipping Monarch Rearing Kits

  • Shipping costs $29 per box and we are able to fit up to 4 kits per box. All Rearing Kits are shipped via UPS Next Day Air to minimize the amount of time the caterpillars are in transit.
  • Provide a physical address for  UPS delivery and make arrangements for someone to accept your package.
    • We are not responsible for packages that are delivered to receiving departments, delayed in delivery to the intended recipient, or are left unattended at a residence.
  • Kits are shipped Monday through Thursday via UPS Next Day Air for delivery Tuesday through Friday.
    • We cannot guarantee a specific delivery date. However, we do our best to fill all of the orders each week.
      • If for any reason there is a chance your kit(s) will not be delivered the week you requested you will be notified via email (if provided) by Friday of the requested week. Your kit(s) will roll over to the next available ship week unless you contact us to select a new ship week.
  • Due to USDA regulations we are able to ship monarch rearing kits only to areas within the United States, east of the continental divide; however, we cannot ship these kits to Montana or Connecticut at this time


If the majority of your caterpillars do not arrive alive or perish within 48 hours of their arrival, we will replace the caterpillars or credit your account. Unfortunately, some caterpillars die due to shipping and handling. We have included a few extra caterpillars to increase the likelihood you will have a successful experience.

Monarchs require special care and we cannot guarantee that all of your caterpillars will become butterflies. In the wild, only a small percentage of the larvae survive disease, parasites, and predation to become adults. If you follow the directions included with your kit, the majority of your caterpillars should become butterflies.

We have many quality control checks before we ship any caterpillars. A few of the precautions we use are washing all milkweed before monarchs lay eggs on them or before the caterpillars are fed, testing for OE, carefully moving the caterpillars to the shipping cups one at a time with a paintbrush, and checking the cups before shipping to ensure all caterpillars are healthy.


You must notify us within 72 hours of your package delivery (including weekends) if you experienced caterpillar mortality problems. Use one of the methods below and include as much information as possible.

Additional information

Weight 1 kg
Dimensions 12 × 10 × 6 cm



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