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You are here: Home / Butterfly Garden Ideas / Giant Swallowtail Spreads Excitement North

Giant Swallowtail Spreads Excitement North

April 10 By Tony Gomez

Warmer Weather Entices Big Butterflies Into
Northern Gardens

Giant Swallowtails are expanding their territory north into the northern U.S. and even Canada. Which butterfly plants can you add to your garden buffet to attract these majestic black beauties?

Before 2011, I’d maybe seen two Giant Swallowtails in Minneapolis…in 30 years! But, as temperatures trend tropical, those living in the northern US and Canada are reporting more sightings of the Giant Swallowtail Butterfly (Papilio cresphontes).

Giant Swallowtail Enjoys a Showy Zowie Yellow Flame Zinnia
More Zow to the Zowie

This beautiful black and yellow butterfly is hard to miss with a wingspan of up to 7” across. In fact, this swallowtail species is the largest butterfly to flutter throughout the US and Canada. Since GST’s are most common in Central and South America, I wasn’t surprised to find they preferred our non-native zinnias and lantana here in Minnesota.

Giants also are frequent visitors to swamp milkweed and tropical milkweed flowers.

Giant swallowtail caterpillars feed on a variety of trees within the citrus family (Rutaceae) including sweet orange, lime, and the hoptree.

Giant Swallowtail Caterpillars Mimic Bird Poop to Avoid Predators
© Gillmalo | Dreamstime.com

They are sometimes referred to as “orange dogs” and they hide amongst the foliage perfectly disguised…as bird poop! Some predators have figured out their “crappy camouflage,” but it’s likely allowed many to reach butterhood.

Host plants are the cornerstone of any successful butterfly garden. This host plant directory makes it easy for you to find the plants you need to create a successful butterfly garden. Visit often for new host plant ideas.

Garden Tip: If you’d like to provide host plants for giant swallowtail caterpillars, but don’t have room for full-sized trees, you have a few decent options:

1.

3. This smaller host tree is an excellent space-saving option. It tops out around 15 feet so it won’t take over your yard and it can even be potted.

Giant Swallowtail Butterfly Sips on Yellow and White Lantana camara
A Perfect Moment

The butterflies have been reported to feed on nectar from azalea, goldenrod, lantana, swamp milkweed, and more.  In our northern garden, they couldn’t get enough of the profusion zinnias last summer. I thought this was odd because I rarely see “big” butterflies on the smaller zinnia flowers. Tiger swallowtails were also frequent visitors.

As the Giant Swallowtail butterfly continues to expand it’s territory north, more of you will have the opportunity to host them in your gardens. If you’d like to attract these giant black beauties to your yard this season, entice them with offerings from our butterfly plants page.

I’ve been pleasantly surprised to find that GST’s have a nectar-tooth for many of the same garden flowers as monarch butterflies. Have you noticed this too?

Please comment below about your experience with host plants and nectar plants that attract giant swallowtails and help a butterfly gardener out!

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Filed Under: Butterfly Garden Ideas, Host Plants for Butterflies, Minnesota Garden Ideas, Wildlife Garden Ideas Tagged With: Butterfly Garden, butterfly pictures, caterpillars, giant swallowtail, goldenrod, hoptree, lantana, Papilio cresphontes

Comments

  1. Mary says

    October 18 at 4:12 pm

    How long do giant swallowtail butterflies live? I had one enclose today in West-Central Kansas. Do they migrate south? I have another in chrysalis and two that are still caterpillars. I was hoping they wouldn’t enclose this fall.
    Thanks!

    • Tony Gomez says

      October 20 at 9:01 am

      Hi Mary, butterflies migrate south but there’s not a centralized location like the monarch migration to Mexico. Adult butterflies can be found in Florida and deep south all winter while they in cooler regions they will overwinter as chrysalides:

      Overwintering Swallowtail Chrysalis

  2. Patsy Jennings says

    October 13 at 5:57 pm

    I cannot find prickly ash anywhere do you know of any

    • Tony Gomez says

      October 13 at 8:38 pm

      Hi Patsy, this is often to find…I think you might have better luck if you do a google search in spring…I will update blog pages if I come across any reliable sources.

  3. Marlene Wolinski says

    September 4 at 12:54 pm

    First time ever in my Brooklyn Park, Mn garden, I spotted a Giant Swallowtail.It was the third and then the fourth week in August. 2017. I was so excited. I watch for butterflies daily, noting the favorite plants. The Mexican Sunflower is at the top of the list for all of them.
    Marlene

    • Tony Gomez says

      September 5 at 2:23 pm

      Exciting news Marlene….our giant visitors really like lantana and the profusion zinnias. Northern prickly ash is their preferred host plant in our region. Enjoy!

      • Brenda Dale says

        September 29 at 2:40 am

        We’ve just moved from Northern Ontario (Sudbury area) to Oakville Ontario. I saw my first Black Swallowtail, AND my first Giant Swallowtail this summer! It’s SOO exciting to see different species. Do you have Luna Moths down here? Or Cecropia? We have them up North, although it’s a rare sighting.

        • Tony Gomez says

          September 29 at 8:50 am

          Hi Brenda, we have both in Minneapolis, but I have not seen any for years. We would probably need to add the right host plants….congrats on your summer sightings 👀

  4. Mitch says

    July 7 at 11:25 am

    I have been quite successful attracting Black Swallowtails and Monarchs, and recently planted half a dozen spicebushes and pawpaw trees to hopefully attract egg laying spicebush swallowtails and zebras. I have a number of rue plants (northern Indiana), but have seen no Giant Swallowtails. Do I stand a better chance with northern prickly ash or hop tree? If so, any idea where I would purchase either one? I have been unsuccessful in my online search. Thank you.

    • Tony Gomez says

      July 8 at 2:35 pm

      Hi Mitch, we added the prickly ash after we were told it was a preferred host. I have never found GST eggs on our Rue or hop tree, so I’m a believer! We got ours from a local grower but you might want to check with this nursery:

      Prickly Ash

  5. Judy Grasser says

    January 16 at 11:19 am

    Does the ‘Hop Tree’ have thorns, too? I like the idea of potting it and keeping it small. This will be a new addition for me this year. I saw one GST last summer and it took my breath away! Zone 5 Wis. Thanks for all you do…

    • Tony Gomez says

      January 16 at 6:50 pm

      Hi Judy,

      no thorns on the hop tree (Ptlelea trifoliata). It grows pretty slowly, but ours was stunted from rabbit munching last winter. It’s protected now, so hoping for more progress this season.

      While the thorns of the prickly ash aren’t fun if you get stuck, it works well for stem cuttings, if you cut off the bottom thorns with a pruner or scissors:

      Raising Giant Swallowtails

  6. Beverly Thompson says

    October 16 at 8:17 pm

    I live in Whittier, California and today I discovered a GST under a pile of lime branches I had trimmed the day before. Its wings were still wrinkled and I coaxed it onto a sturdy branch where the wings could fully expand. It was a beautiful experience and I have never seen one in my area. I identified it from a U.C. Irvine website photo. One comment on that site was that citrus trees were a plant they favor. I believe it since it must have been on my lime tree and I also have a lemon and two orange trees. Now that I know what to look for I will keep an eye out for more next season.

    • Tony Gomez says

      October 17 at 4:06 pm

      Congrats Beverly! It was good you found it right away so its wings could dry properly. With all those citrus trees, I’m sure you’ll get the opportunity to raise some soon:

      Raising Giant Swallowtail Butterflies

    • Matt says

      October 24 at 1:19 pm

      I live in La Mirada and a GST hung around my yard for more than half an hour. I had no idea what kind of butterfly it was and I was surprised to find that they’re rare around here.

  7. Roberta Benvin says

    September 4 at 10:16 pm

    I live in south-central Pennsylvania, and, even though I have never seen a GST, I found a single egg on my rue plant. Thinking it might be a black swallowtail on steroids, I raised it with other black swallowtail eggs. When the caterpillar kept outgrowing the others, it became obvious that I had a different species. Now that the caterpillar is starting to pupate, I am concerned that it is getting late in the season for it to eclose. I have read that the chrysalis can be placed in the refrigerator to ensure that the butterfly will not emerge until next spring. May I have your comments and suggestions as to what I should do. This will be my first viewing of a Giant Swallowtail, and I don’t want to do anything that will endanger its survival. Thank you.

    • Tony Gomez says

      September 6 at 3:07 pm

      Hi Roberta, I put ours in a 3-season porch all winter and some people will put them in the garage. I have never used the refrigerator method so i would talk to someone else who has first hand experience…congrats and good luck!

      Overwintering Swallowtails

      • Carol says

        June 3 at 9:57 am

        The reports of Giant Swallowtails in the north are intriguing! I don’t have fruit trees but do have one rue plant among my offerings.

        I used the garage method this last winter, for one straggling BST and admit I was not pampering it, at all. I figured it might be a goner, looking rather dried out. It had lost its attachment fibers and was in a bed of tissues, in a plastic fruit container, loosely wrapped in some netting. It surprised me this last few weeks when it eclosed. I’ll use the garage method again. 😉

  8. Julie says

    August 14 at 6:31 pm

    I live 42 km. North of North Bay, Ontario, Canada and saw a Giant Swallowtail for the very first time. It fed most of the afternoon on my Purple Cone flowers and red Bee Balm. I was able to get many photographs. What a nice surprise!

    Also want to add that this Giant Swallowtail had both its wings damaged and maybe as a result of severe weather in the southern region could this poor beauty gotten swept away and ended here in northern Ontario.

    • Tony Gomez says

      August 16 at 9:20 am

      Hi Julie…how exciting! Swallowtails wings get beat up pretty easily, by both weather and potential predators. I hope it hangs around your garden for a few days…enjoy!

  9. LaMoyne Hardenburger says

    August 6 at 3:28 pm

    Today was my first ever sighting of a Giant Swallowtail! It flew away just after I took a picture of it on my butterfly bushes. I’m well aware of the plight of Monarchs and am trying to aid their recovery. In the past four years, I’ve raised and released hundreds of Black Swallowtails (many from the egg), but this year I’m finding very few. I plant host plants in my garden tubs specifically for them. Today I have only two Black Swallowtails in the chrysalis stage and hope to have butterflies to release by August 14 and 17. Our loss of butterflies is very disturbing to me.

    • Tony Gomez says

      August 7 at 9:14 am

      Hi LaMoyne, it has been a slow butterfly season. It started with the March snowstorm in the monarchs’ overwintering grounds and has continued to be bad news for butterflies with increased mosquito spraying, especially in warmer regions. Good luck with your swallowtails and I hope you see more butterflies soon…

  10. John Larson says

    February 15 at 1:21 am

    John Larson says

    I saw Giant Swallowtails the summers of 2013 and 2014 in Goodhue Cty. Minnesota.

    last summer 2015 after two years of below average winters- in 2015 I saw not a GST .

    This winter 2015-2016 is more like that warm winter of 2012-2013 where I

    saw GiantSwallowtails in large #s. Do you anticipate this? I find them along waterways.

    below the Prickly Ash, and nectoring on Marsh Milweed ,Goldenrod and other flowers

    • Tony Gomez says

      February 15 at 8:32 am

      Hi John, we had seen them for the last 5 seasons and then, like you, none in 2015! Weather patterns definitely effect the range of warm weather butterflies, some more than others. If spring comes early, like everyone is predicting, my guess is they will venture further north this season.

  11. Holly says

    April 24 at 4:21 pm

    How is it you are growing Lantana in Minnesota?! Everything I’ve read suggests it needs the warmer climate of lower states. I used to have Lantana in CA and miss it very much. I LOVE Lantana, but up here in upstate NY, I didn’t think it was possible. But if you are growing it in Minnesota, it must be possible. Please do tell more! Thanks!

  12. Phil Hammond says

    August 30 at 11:07 am

    I live in northeast n.y. ,started seeing GST 2010 . they nectar on lantana,beebalm, tithonia and zinnias in my garden.

    • Holly says

      April 24 at 4:24 pm

      Any advice on how to grow lantana in NY would be very appreciated. Is it perennial up here?

      • Tony Gomez says

        April 24 at 8:32 pm

        Hi Holly, lantana is typically an easy-to-find annual in most regions. Just be sure you are buying from a nursery that grows pesticide-free.

        You can also purchase plants online of the reported butterfly favorite ‘miss huff’. I overwintered these indoors. You would have to do the same in your region

        For more ‘Miss Huff’ info Scroll Down to #6:

        ‘Miss Huff’ Lantana Plants

        • Carol says

          August 20 at 5:09 pm

          Hi Tony,

          Any suggestions where to find Lantana ‘Miss Huff’? I’ve not found it in my local IL nurseries again this season, and I’ve not seen a lot of options to order seeds or plants online.

          Thanks!

          • Tony Gomez says

            August 23 at 11:40 pm

            Hi Carol, there’s a link to vendors selling it under my ‘Miss Huff’ listing:

            Lantana Plants

  13. Mary L Waitkaitis says

    January 25 at 5:44 pm

    I saw my first Giant Swallowtail in my garden. I followed in thought my yard until I spotted one egg laid on Rue!!! The chrysalis is in my shed over wintering. I hope there will be a butterfly to release along with the Black Swallowtail I also have there. I was totally shocked to see the Giant but so happy it made a stop here in Northeast PA! This year was my first full year raising butterflies.
    Also became a Monarch Waystation #7105 Pottsville,PA.

    • Tony Gomez says

      January 25 at 8:17 pm

      Hi Mary, greetings from Monarch Waystation #3972! How exciting to get GST eggs in PA. Releasing swallowtails in spring is an amazing experience. Keep us posted…

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