Our First Home Grown Monarch Butterflies

So Judy and I just raised our first Monarch butterflies to adulthood. We were nervous about trying, but then we read that only about 5% of Monarch caterpillars in the wild make it to adulthood. We figured we could do better than that.


We brought in four caterpillars that we found on our Butterflyweed (Asclepias tuberosa). For this first effort we used an old-fashioned glass terrarium. We found out later that a mesh terrarium works better, so we’ll use that the next time. They’re pretty inexpensive.

It takes up to two weeks for Monarch caterpillars to turn themselves into chrysalids, and in that time they generate massive quantities of caterpillar poop, also known as frass. It’s important to keep the terrarium clean, which means getting rid of the frass each day. We used a lining of moist paper towels, which made cleaning a little easier. You also have to add fresh Milkweed stems every day, so that the caterpillars don’t run out of food.

Chrysalids hanging from the top of the terrarium. 

Sadly only two of our caterpillars made a successful transition to chrysalids. Of the others, one got into position but only made it halfway through the transformation, then died. Another one completed the transformation, but attached itself to the paper towels at the bottom of the terrarium. The two successful chrysalids attached themselves at the top.

Losing two of the caterpillars was disappointing. Still, 50% is better than 5%.

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Monarch in terrarium on the grass. 

It takes 10-14 days for an adult Monarch to emerge from the chrysalis. Judy and I had to travel for our jobs just as we were reaching the critical point. Fortunately my neighbor Matt and his 5-year old daughter Julia were willing to check the chrysalids ever morning and evening. Such good neighbors!

Sure enough, the day before I returned Matt and Julia found an adult Monarch fluttering around inside the terrarium. They took the terrarium outside, opened it up, and watched the Monarch take wing. Matt took a few pics with his phone and texted them to me. I was excited, though I also felt a bit like I had missed being present at the birth of my first child.

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After leaving the terrarium the monarch spent a few minutes basking on the Smooth Hydrangea (Hydrangea arborescens).

The next afternoon I got home. I rushed to the terrarium and found an adult Monarch sitting on the glass floor of his temporary home. I placed my finger near his head, and he crawled right on. New adults take up to a day to dry out their wings and otherwise acclimate to their new life stage. I wasn’t completely sure this guy was ready to take off.


Despite this, I carried him outside. A few steps beyond the door and away he went, landing on a nearby Spicebush (Lindera benzoin).

This post is not meant to be a guide to raising Monarchs indoors. For that you should check a reputable source, like Save Our Monarchs.

Having done this once, we are eager to try again. Unfortunately, we’re not finding any caterpillars in the garden, though there are always a few adults around. I’m optimistic that we’ll find a few before the next migration has finished passing  through this area.

Let’s close with a little Monarch caterpillar video that Judy took. Until next time, think about places where you can plant more Milkweed for the Monarchs.


67 Comments on “Our First Home Grown Monarch Butterflies”

  1. Looks like two males, though it’s harder to tell by looking at the underside of the wing. In the first and second photos it is easy to see the telltale dot on the bottom wings that indicates a male. A female doesn’t have the dots but the black wing veins are thicker, giving her an overall darker appearance.

  2. What a wonderful story! On so many levels, from the neighbors who were willing to help to the birth of these beauties. Once upon a time, in Maine, there were so many monarchs that it was easy to gather a few caterpillars, put them in jars, and watch the metamorphosis. My memory might be unreliable, but I recall our success rate being 100 percent. Anyway, bravo to you and Judy.

  3. So exciting! We raised a few butterflies last year but this year, since we have the kitten, we decided not to as we prefer to keep the cages inside and it may be too much of a temptation for her. I think only one of the butterflies we reared was from a caterpillar we found – for the rest, I looked for eggs on the milkweed in our garden, which were fairly easier to find.

  4. What a wonderful event. You’re right — 50% beats 5% every time, and I suspect if you try again you’ll be even more successful. I don’t think I’ve ever found a Monarch egg, but I’ve never gone looking with any dedication. I know several people who have moved past enthusiastic about raising them to obsessing a bit — but it’s a very friendly and cheerful obsession, and not at all annoying. They have great success, too.

  5. I never would have guessed that 95% do not make it to adulthood! When I was in grammar school, we brought a few chrysalids that we found in the landscape into our classroom, and they all developed into butterflies of one sort or another. Of course, I do not know what happened to them after they flew away.

  6. Thank you for your Monarch Nursery! Several years ago, milkweed appeared in my garden and the Monarchs followed, laid eggs, and I have been raising caterpillars to butterflies every since. It is so much fun and rewarding. Just this morning, a butterfly emerged from its chrysalis! And I have five more waiting for their turn. It never gets old — I love watching the miracle of transformation. In my area of Minnesota, it has been a good year for Monarch sightings and egg laying. Hopefully, it will continue! Continued good luck to you!

  7. Sorry Jason, but it was not the butterfly which caught first my attention in this post but your plant Asclepias tuberosa. I planted it this year in my garden. I am not really sure if it is frost-resistant or need a winter protection? Of course also the butterfly looks nice.

  8. This year was our first year with monarch butterflies too. I think it’s the weirdest, most beautiful thing I’ve ever seen in my life. We likewise had some successes and some tragedies. Just for future reference, if the chrysalis is intact you can move it to a better location: you just loosen the silk pad from the surface it’s on, and then you can use scotch tape to tape the silk pad (allowing the chrysalis to hang free) to a better surface.

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