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Best Plants to Attract Monarch Butterflies to the Garden!

Best Plants to Attract Monarch Butterflies to the Garden! - Nature Hills Nursery

Charlotte Weidner |

Want to help out the plight of the Monarch? Declining due to habitat loss and pesticide overuse, plus a few other issues, the Monarch butterfly needs our help! Their population has already dropped by 90% over the past decade! We’re beginning to see an uptick in gardeners creating butterfly and pollinator gardens, adding more local native species into landscapes and garden designs, as well as leaving a patch of ‘wild’ habitat in the out-of-the-way locations of our yards!

The biggest two ways the average gardener can help with Monarch butterfly populations is to reduce and use proper timing of pesticides while using more organic pest control methods, and planting Monarch Butterfly Caterpillars' favorite food - Milkweeds!

    Monarch Caterpillar Host Plant Favorites!

    Monarch Butterflies only lay their eggs on plants in the Asclepias family, so they are a critical resource species in their lifecycle! Without Milkweeds, Monarchs will completely disappear and we don’t want that!

    With several common names - including Butterfly Weed and Butterfly Flower. The seed pods look like horn-shaped green, sometimes spiky looking, and are full of silky strands attached to tear-drop-shaped brown seeds that get carried away by the wind.

    These seeds gave rise to other common names like Silkweed, Silky Swallow-Wort, and Virginia Silkweed. Monarch caterpillars eat these pods and Milkweed bugs do too. These red and black insects eat the Milkweed seeds. Removing these bugs so you have plenty of seeds for spreading next year will help, but isn’t completely necessary if your plant has lots of seedpods.

    Featuring stary-shaped flower clusters comprised of complex five-part flowers, filled with lots of sticky nectar, and milky sap (called latex) in the foliage and stems. This latex is partly why Monarchs choose these plants to lay their eggs on since the sap is toxic to most predators of the plant. Monarch caterpillars eat these plants and then sequester those toxins within their own bodies, called cardenolides/cardiac glycosides, and carry that toxin through metamorphosis into adulthood.

    Birds learn quickly to avoid these insects because of their bad taste and which can make them sick. This has given rise to many ‘mimics’ like the similar-looking Viceroy butterfly and many other copycats trying to trick birds and other predators into not eating them too!

    Incredible Perennials That Have It All!

    • Highly adaptable & tolerant
    • Deer and rabbit-resistant
    • Loves Sun
    • Some are Xeric - Others thrive in moist to wet soil
    • Milky sap and fragrant flowers
    • Long-lasting blooms

    The Main Types of Milkweed at Nature Hills Nursery

    #1 Common Milkweed

    milkweed

    Classic native Milkweed plants (Asclepias syriaca) have broad, pale-green leaves and big round clusters of star-shaped waxy blossoms and the gold standard Monarch butterfly-attracting host plant they lay eggs on! Highly adaptable herbaceous perennials throughout most of the US in hardiness zones 3 through 9, the native varieties of flowers can range from pink, purplish, and even white.

    They’re sweetly fragrant and the flowers are long-lasting. Low moisture needs and Xeric once established. Check out the Audubon® Native Got Milkweed! These plants can get nearly 5 feet tall and are often a single stem. Plant in pollinator gardens, cottage borders and along sunny swaths to attract these lovely insects.

    • Full Sun
    • Low Moisture Once Established
    • Blooms June - August
    • USDA zones 3-9

    #2 Swamp Milkweed

    milkweed blooming
    Swamp Milkweeds have narrow leaves and darker flower clusters and love soggy to moist soil. Found around bogs, bodies of water, and marshes. More ornamental varieties include the creamy white blooms of the Milkmaid Swamp Milkweed (Asclepias incarnata) smell like vanilla! Likewise, the dark pink to nearly red blooms of the very adaptable Soulmate Swamp Milkweed!

    Plant around Rain Garden, in moist pollinator gardens and water features, ponds, brooks and those soggy out-of-the-way areas in the sun.

    • Full Sun - Milkmaid tolerates partial shade
    • Moist to wet soil, but adaptable
    • Blooms mid-late summer
    • USDA zones 3-8

    #3 Whorled Milkweed

    whorled milkweed

    With fine, needle-like slender foliage and smaller clusters of tiny white blossoms and each petite blossom also sport a buttery yellow center. Whorled Milkweeds (Asclepias verticillate) may not look like the above varieties, but they do have the same 5-part flowers and milky sap. The flower clusters are lightly fragrant from the time they bloom in the summer all the way until fall fully sets in. They also feed Monarch caterpillar larvae! Add fine, lacy texture and height to borders, native gardens, and pollinator plantings.

    • Full Sun
    • Most well-drained soils
    • Blooms June-September
    • USDA zones 4-9

    #4 Butterfly Weed Plant

    butterfly weed plant

    With fiery orange and yellow flowers and long, slender dark green foliage, The native Butterfly Weed Plant (Asclepias tuberosa) brings fresh color to the butterfly garden! Again retaining all the other important benefits as an easy-to-care-for and carefree perennial that Monarch butterflies flock to and lay their eggs on.

    Lovely color for your garden and even in cutting gardens, these hot-colored blooms are long-lasting loose, informal clusters and grow to about 2-3 feet in height. Loving the full sun, they end the season with long, slender seed pods. Try mixing the orange and yellow blooms with Hello Yellow Butterfly Weed has unique yellow flowers and the same deep green foliage. These types of Butterfly Weed do very well in low moisture locations once established.

    Cinderella Butterfly Weed (Asclepias incarnata) tolerates moist soil and full sun but with rosy pink and light pink rounded flower clusters. Add to cut flower arrangements and anywhere in the garden for lovely color anywhere in the sun. Plant these around water features and ponds, Rain Gardens, and moist to average garden soils.

    • Full Sun
    • Hardy zones 3-9
    • Blooms in June - August
    • Low moisture once established
    • Cinderella tolerates moist to wet soils

    #5 Milkweed Vine

    Milkweed vine

    Oddly enough in one garden I had, where there weren’t any Milkweeds, there was one weed that ran rampant and was in the same family that the Monarch butterfly adults used in a pinch - Milkweed vine (Cynanchum laeve) which is a vining perennial native to eastern and central U.S. states and Ontario! Even in gardens where the more tame Milkweed plants grew alongside this volunteer weed, sometimes the Butterflies preferred the vine! You can imagine how mad I was after planting the Monarch in their very one entire ornamental Milkweed garden - and they chose the weeds!

    A notoriously noxious vining weed that for some reason was absolutely covered in Monarch caterpillars! So don’t be too quick to tear out some of this weed if it's not in an area of your landscape where it will not interfere with your other plants! Also known as Honeyvine Milkweed, Climbing Milkweed, and Anglepod among many others is a Milkweed species and, therefore a host for Monarch butterfly larvae. This plant forms flowers and pods similar to other Milkweeds, including the milky sap, but is aggressive and invasive when not controlled.

    Feed Adult Monarch Butterflies With These Favorites!

    Butterflies adore nectar-rich perennials and flowering shrubs! Here are some butterfly and pollinator plants that Monarch and other Butterflies seem especially drawn to!

    • Iron Butterfly Ironweed
    • Butterfly Bushes (Buddleia)
    • Sedum
    • Black Eyed-Susan
    • Coreopsis (Tickseed)
    • Perennial Salvia
    • Asters
    • Coneflower
    • Hyssop
    • Annuals such as Zinnia, Aster & Cosmos

    Make Your Garden a Monarch Hot-Spot!

    Got a garden that frequently has Monarch butterflies? Set up a pollinator watering station with a shallow birdbath or dish with pebbles that are almost covered with water and add slices of fruit like oranges and apples for puddling butterflies and other pollinators to get natural sugars.

    Want to do more for Monarch Butterflies?

    • If you have lots of Milkweed and Butterfly plants, then you have a Monarch Way Station!
    • You can also join Monarch counting efforts
    • Join Monarch tagging efforts
    • Use organic pesticide and pest control
    • Plant more Milkweed and Butterfly Weed plants and Nectar resources
    • Avoid GMO and non-native plants and choose local/regional varieties

    To attract and host other butterfly species, check out our Garden Blog about other Butterfly Host Plants and the larvae they feed! Then sit back and watch for these tiger-striped flying flowers! Let Nature Hills help you make your landscape better for pollinators!

    Happy Planting!

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    Frequently Asked Questions

    How do I attract monarch butterflies to my yard?

    To attract monarch butterflies to your yard, start by planting milkweeds (Asclepias species), which are the only plants monarchs will lay their eggs on and the sole food source for their caterpillars. Common Milkweed, Swamp Milkweed, Butterfly Weed, and Whorled Milkweed are all excellent choices available at Nature Hills Nursery. Reduce pesticide use and switch to organic pest control methods, as chemical overuse is one of the leading causes of monarch population decline. Plant a variety of milkweeds and nectar-rich flowering plants to create a dedicated pollinator garden, and consider leaving a small wild area in your yard to provide additional habitat.

    Which plants are best for attracting monarch butterflies to the garden?

    Monarch butterflies depend exclusively on plants in the Asclepias family (milkweeds) as host plants for their caterpillars, making these the single most important addition to any butterfly garden. Nature Hills carries several excellent options, including Common Milkweed, Swamp Milkweed, Whorled Milkweed, Butterfly Weed, and Milkweed Vine, each suited to different growing conditions and regions. To make the greatest impact, plant a variety of milkweed species to extend the season and support caterpillars, and reduce or eliminate pesticide use near these plants to keep your garden safe for both eggs and larvae.

    What flowers do monarch butterflies visit most often for nectar?

    Monarch butterflies are generalist nectar feeders and will visit a wide variety of flowering plants, but they show a strong preference for milkweeds (Asclepias species), coneflowers (Echinacea), Joe Pye Weed, goldenrod, zinnias, and lantana. Native wildflowers that bloom from late summer through fall are especially valuable since they fuel Monarchs during their long migration to Mexico. To maximize your garden's appeal, aim for overlapping bloom times from July through October and include at least three to five different nectar sources to keep food available throughout the season.

    Why is milkweed so important for monarch butterflies?

    Milkweed is the only plant monarch butterflies will lay their eggs on, making it absolutely essential to their survival and reproduction. Monarch caterpillars feed exclusively on milkweed foliage and seed pods, absorbing toxic compounds called cardenolides that protect them from predators throughout their entire life cycle, including into adulthood. Without milkweed, monarchs cannot reproduce and will disappear entirely. Plant native milkweed species like Common Milkweed, Swamp Milkweed, or Butterfly Weed in your garden to give monarchs a critical lifeline and help reverse their 90% population decline.

    What part of milkweed do monarch butterflies eat and why?

    Monarch butterflies in their caterpillar stage eat the leaves, stems, and seed pods of milkweed plants in the Asclepias family. The milky latex sap found throughout the plant is actually toxic to most predators, and caterpillars absorb these toxins, called cardenolides or cardiac glycosides, storing them in their bodies as a defense mechanism that carries through into adulthood. Birds quickly learn to avoid Monarchs because of this toxicity, making milkweed a critical survival resource at every stage of the butterfly's life. Plant at least three to five milkweed plants in a sunny garden spot to give caterpillars enough foliage to feed on through the season.

    Do monarchs visit coneflowers, and should I plant them alongside milkweed?

    Adult Monarch butterflies are generalist nectar feeders and will absolutely visit coneflowers (Echinacea), making them a valuable companion planting alongside milkweed. While milkweed is the only plant Monarchs will lay their eggs on, coneflowers provide a rich nectar source that keeps adult butterflies fueled and lingering in your garden longer. Coneflowers thrive in zones 3 through 9 and bloom from midsummer into fall, which aligns well with peak Monarch migration periods. Plant both milkweed and coneflowers together in a sunny spot to create a garden that supports the full Monarch lifecycle from egg to adult.

    Does Silphium integrifolium attract monarch butterflies?

    Silphium integrifolium, known as Rosinweed, is not a host plant for Monarch butterflies, as Monarchs exclusively lay their eggs on plants in the Asclepias (Milkweed) family. However, its abundant yellow daisy-like flowers can attract adult Monarchs and other pollinators seeking nectar. If your goal is to support the full Monarch lifecycle, pair Rosinweed with native Milkweed species like Common Milkweed or Butterfly Weed (Asclepias tuberosa) to provide both nectar sources and essential host plants for caterpillars.

    How can I create a garden that supports monarchs throughout their migration season?

    To support monarchs throughout their migration season, plant a diverse mix of milkweed species such as Common Milkweed, Swamp Milkweed, and Butterfly Weed to provide reliable host plants from spring through fall. Reducing pesticide use and switching to organic pest control methods protects both caterpillars and adult butterflies as they pass through your garden. Supplement milkweed with nectar-rich flowering plants to fuel adult monarchs on their journey, and consider leaving a small wild patch in a corner of your yard to provide natural shelter. Visit naturehills.com to browse milkweed varieties suited to your growing zone and start building your monarch-friendly garden today.

    Can monarch butterflies be found and attracted in Florida gardens?

    Monarch butterflies do pass through Florida during their migration and can be found in Florida gardens, particularly during fall migration between October and November. Florida gardeners in USDA Zones 8-11 can support both migrating and year-round resident Monarchs by planting native milkweed species like Swamp Milkweed (Asclepias incarnata) and Butterfly Weed (Asclepias tuberosa), which serve as the only host plants Monarch caterpillars will eat. Note that in South Florida, gardeners should be cautious about planting non-native Tropical Milkweed year-round, as it can disrupt migration patterns, so cutting it back in fall or choosing native species is the best approach. Plant milkweeds in full sun with good drainage and add nectar-rich flowering plants nearby to create a complete habitat that feeds and supports both caterpillars and adult butterflies.

    How do I propagate milkweed and other monarch-friendly plants to expand my garden?

    Milkweed spreads naturally through its wind-carried seeds, but you can also collect the tear-drop-shaped brown seeds from the horn-shaped pods in fall before they fully open and direct sow them in your garden. Most Asclepias species benefit from cold stratification, so either winter sow them outdoors or refrigerate seeds for 30 days before starting indoors 6 to 8 weeks before your last frost date. Established clumps of Swamp Milkweed and Common Milkweed can also be divided in early spring as new growth emerges. Start by planting a mix of milkweed species from Nature Hills to give yourself a healthy seed source for expanding your pollinator garden each season.