Caterpillar catalog (and the plants that make it possible)

When I returned home after a weeklong trip to Whistler, I was giddy to walk around the garden and find not one monarch butterfly emerging from its chrysalis, but two.

newly-emerged-monarch
Newly emerged monarch on rue

After finding those, I of course crawled around in the mulch and dirt to inspect the undersides of leaves. I found three more monarch chrysalises plus a bunch of fat swallowtail caterpillars who will soon be crawling off to metamorphasize as well.

This is SO EXCITING Y’ALL. Here’s a full caterpillar catalog of what I’ve found so far:

Some friends at work are also interested in butterfly gardening, and are looking for host plant ideas. Since we work for a company that makes, ahem, blogging software, my friend naturally asked “Did you do a blog post on what all you planted?” Nudge nudge.

Shockingly, I have not. So here it is! Kris and Liz, this is for you.

The plants

For Mother’s Day, our son gave me Christopher Kline’s book, Butterfly Gardening with Native Plants: How to Attract and Identify Butterflies. Combined with a bunch of online research, experimentation with a butterfly garden in Florida, and talking to bunches of people who garden for butterflies and caterpillars, this book helped me plan a garden that includes both host plants (that caterpillars eat) and nectar plants (that adult butterflies drink from). The most successful plants in our garden are the following:

Host plants

Milkweed (Asclepias): We planted both common milkweed and swamp milkweed. These are by far the most insect-loved plants in the garden. They are constantly covered in various species, including aphids, beetles, and, late in the summer, monarch caterpillars. Milkweed is both a nectar plant and a host plant. We’ve seen adult giant swallowtails and monarchs drinking from its flowers, and have found at least a dozen monarch caterpillars on it. Word of warning: milkweed will get covered in aphids. The caterpillars will still come even when every surface is crawling with aphids, so we kept our milkweed intact even though it’s not very attractive once it has stopped flowering and it’s coated in tiny orange insects.

Rue (Ruta graveolens): This is possibly my favorite addition to the garden. The leaves are a silvery blue-green, the plant stays neat and tidy (it doesn’t get leggy or messy), it can take the heat (and drought) and still look healthy, and the swallowtail caterpillars adore it. As an unexpected bonus, the monarch caterpillars love it for building chrysalises. We’ve found at least 3 chrysalises in the small, shin-high plants.

annotated-garden_0168
Butterfly host and nectar plants

Nectar plants

Milkweed: all the butterflies big and small love milkweed.

Indigo salvia: Aside from the milkweed, these purple flower spikes are the most popular in the garden for butterflies to drink from. Bees also love these flowers.

Pink salvia: Okay, maybe these are tied with the indigo salvia for nectar popularity, at least for hummingbirds. I see hummingbirds drinking from these almost every time I sit in the garden.

Bee balm (Monarda): Butterflies and hummingbirds love this as well. Hummingbirds dart between the pink salvia and the bee balm.

Thai basil: I’ve seen some small butterflies and moths (and caterpillars) on these flowers.

 

annotated-garden-0063
Butterfly host and nectar plants

Cone flowers: Butterflies always visit these.

Joe Pye weed: Butterflies love to drink from Joe Pye flowers. Joe Pye weed gets really tall and floppy unless you get the dwarf varieties.

monarch-on-joe-pye_0056
Monarch on Joe Pye weed

We planted some other things that weren’t as awesome as we expected:

Parsley: parsley is a host plant for swallowtails, but the swallowtail caterpillars definitely opted for the rue over the parsley, at least this year. I didn’t find any caterpillars on the parsley, and found at least a dozen on the rue.

I guess the parsley is the only one :-). We have lots of other nectar flowers — brown-eyed Susans, Mexican blanket flowers, some other stuff I can’t remember the names of — but the ones I listed above were definitely the most successful.

If you can identify any of the caterpillars in the catalog, please let me know! I think most of them are probably moths, but I don’t have a good ID book.

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