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How to Raise Butterflies

By Bren | Affiliate Disclosure | Filed Under: Bug Theme

Every spring my preschool class plants parsley seeds with the hope that we’ll have black swallowtail butterflies in the fall.  Black swallowtail butterflies inhabit most regions of the United States (except the northwest).

How to Raise Butterflies

Today’s post is written by Bren, a contributor to PreKinders.

We plant the parsley seeds in a big pot and put it in a sunny spot in the yard, watering it occasionally.  In September, we start looking for tiny caterpillars.  When they are between a half-inch and an inch long we set up a cage for them and move them inside.  If you wait for them to get much bigger birds will get them (we know from personal experience).

Raising Butterflies

Fill a small plastic cup with water and cover with a piece of plastic wrap.  Use a rubber band to secure and poke a few small holes in the top (the plastic wrap keeps the caterpillars from falling in the water and drowning).  Stick some parsley from your plant through the holes.  To move the caterpillars to the cage, cut the piece of parsley they’re on close to the base of the plant and stick the stems through the holes.

Raising Butterflies

Over the next few weeks the caterpillars will eat and grow.  You can get additional parsley from the grocery store if necessary, making sure to wash it thoroughly.  Always make sure there’s water in the cup.

When you notice that the caterpillars are devouring the parsley faster than before, it’s a sign that they are about to make their chrysalis.  They will attach themselves to the top of the cage and in a week or so you’ll have butterflies.  We always release them as soon as their wings are dry.

Raising Butterflies

Raising Butterflies

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4 Comments

About Bren

Bren is a contributing writer for PreKinders.com. She is a Pre-K teacher in Illinois.

Reader Interactions

Comments

  1. Trisha says

    June 2, 2013 at 1:18 am

    This is really great! Do they make a chrysalis the same time each year? Is it something we could count on for school each year? My school starts right after Labor Day each year.

    Reply
    • Bren says

      June 2, 2013 at 1:30 am

      Yes, about the same time every year. The caterpillars usually show up around Labor Day. We didn’t have any last year because it was just too dry. But, most years we find about a half-dozen caterpillars.

      Reply
  2. karla mccollough says

    June 2, 2013 at 7:00 am

    I would love to do this….just making sure I follow – plant the parsley in the spring, water and wait for the caterpillars?? You don’t have to do anything else to attract them? Is your school year round? I guess I would bring the parsley home in the summer to keep it watered. The kids are out for the summer now, but I’m thinking I might plant the parsley seeds now and hope for butterflies this fall!

    Reply
    • Bren says

      June 2, 2013 at 8:02 am

      That’s all I do. Plant the parsley, keep it watered and wait for caterpillars. 🙂 At some point during the summer the butterflies lay eggs on the parsley. There are flowers that you can plant that attract butterflies (zinnias, asters, cornflowers, pansies, and more). I haven’t needed to do that, but it might increase the odds of getting caterpillars.
      I live in IL, so at this point in the season, I would buy a parsley plant rather than plant seeds (just to speed things along). But, it might not be “late” in the planting season in other regions of the country.

      Reply

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