Tag Archives: butterfly

5 Butterflies Found in the Mid-Atlantic & What to Plant for Them

By now many have heard about and understand the plight of the Monarch butterfly. Over the last few decades, their numbers have been steadily declining as they face food and habitat loss as well as pesticide exposure. Though they’re certainly a deserving and beloved species (plant milkweed!), Monarchs aren’t the only insect or even butterfly that’s struggling. Here are five slightly lesser known butterflies found in the Mid-Atlantic and what you can plant this year to help them.

Photograph of an American Copper from Mass Audubon

American Copper Lycaena phlaeas americana

The American Copper’s is a fairly common butterfly though anecdotally it is seen less frequently today than in the past. These butterflies are orange and grey with black spots.

American Copper caterpillars preferred larval host plant (the plant where a butterfly lays eggs and is eaten by caterpillars) is Sheep Sorrel though it will use curly dock. Leaving sheep sorrel and curly dock available is important for their survival. As adults American Copper butterflies will feed on a wide variety of available flowers.   

Photograph of a Black Swallowtail from Mass Audubon

Black Swallowtail Papilio polyxenes

Commonly mistaken for other swallowtails this mostly black butterfly can be distinguished from other species by the black center on the orange spot on the inside corner of their hindwing. 

If you love the black swallowtail you may have to be willing to share a few of your crops. Black Swallowtail caterpillars will feed on carrots, dill, fennel, and parsley. As adults black swallowtails will feed on a variety of flowers. Like many other butterflies, they are particularly attracted to species such as milkweed, thistle, and clovers.

Photograph of a Common Sootywing from Mass Audubon

Common Sootywing Pholisora catullus

This butterfly can be identified by its glossy black (sometimes dark brown) appearance and the double rows of white dots prominent on the outer margins of the upper forewings. 

The Sootywing’s favorite host plants are lambsquarters, amaranth, and cockscomb (celosia). Adding some of these to your garden or in the case of lambs quarters simply letting them grow can help this butterfly thrive in your yard. Adult Common Sootywings can be found feeding on dogbane, common milkweed, purple loosestrife, and wild indigo. 

Photograph of a Long-tailed Skipper from Mass Audubon

Long-tailed Skipper Urbanus proteus

The Long-tailed Skipper gets its name from the long tails on its hindwings. It can also be identified by its iridescent blue-green head, thorax, and basal areas of both wings. 

This species of caterpillars feed on legumes, including cultivated varieties. Legumes include all sorts of beans and peas, alfalfa, clovers, and wisteria. Many of these species also happen to be really easy to grow. In their butterfly stage, they will feed on a variety of flowers. 

Photograph of an Orange Sulfur from Mass Audubon

Orange Sulfur Colias eurytheme

The Orange Sulfur can be identified by yellow-orange to darker orange upper wing surfaces.

Like the Long-tailed Skipper, Orange Sulfur Caterpillars feed on legumes. However, Orange Sulfurs have a strong preference for alfalfa earning them their nickname the alfalfa butterfly. As adults, they aren’t selective about which type of flowers they feed on.

Additional Tips

A few great flowers for many butterflies include:

The most important consideration with flowers is providing blooms throughout the season. Plant successions and choose flowers with a variety of bloom times from early to late. Choosing native plant varieties can also help butterflies succeed.  Check out our Welcome-to-the-Garden Pollinator Collection.

Avoid the use of pesticides whenever possible. Even certified organic pesticides can affect more than the targeted species. Especially if you live in a dry area consider adding a water feature for butterflies and other pollinators to drink from. 

These are just a small fraction of the Mid-Atlantic’s native butterflies. If you’d like to help butterflies and other pollinators consider some of these tips as your planning and working in your garden this season. 

Planting for Pollinators: Black Swallowtail Butterfly

Eastern Black Swallowtail

As a garden lover, you know that pollinators are in trouble. For decades now huge amounts of pesticides have been dumped on US crops in order to control pests (335 million lbs in 1965, up to 948 million lbs by the year 2000, as the bugs keep gaining resistance.) At the same time pollinator populations are being destroyed. Compounded with the chemical stress, they are losing their food sources as more invasive species of plants that they cannot eat crowd out native species. It’s up to us enthusiastic gardeners (even if you’re not quite as enamored of all the creepy crawlies as I am) to plant the first line of defense and grow with an eye not just to our plates, but to the care of our buggy friends. We know from how quickly our Insectiary Mix gets snapped up that people want to be doing this, so we’d like to offer more in-depth information about particular pollinators and how to attract and care for them.

Butterflies are an easy sell for gardeners. Unlike wasps and bees, no one is afraid of them, and they make a beautiful addition to any garden. Moreover, butterflies help to pollinate your plants and feed your songbird population. While adult birds can live well on seeds and berries, nestlings are unable to digest these yet and require juicy caterpillars to help them grow. Without a steady supply of caterpillars arriving at the nest – it takes thousands to feed one clutch – baby birds starve to death. Read more here.

The Eastern Black Swallowtail is a wonderful candidate to attract to your garden. They are efficient pollinators and their striking black wings dabbed with yellow and blue are a delightful sight among the flowers. There are hidden benefits too: the caterpillar of the black swallowtail smells bad to predators and helps to deter them from your garden. The black swallowtail has a large range, covering all but the northeastern part of the United States, and extending well south into Mexico.

So what can you grow to draw these lovely critters? Black Swallowtail caterpillars feed on plants in the Apiaceae family – that’s carrots, dill, fennel, parsley, celery, caraway. Keep in mind that feeding caterpillars means sacrificing some plants, so if you’re trying to feed yourself too it’s a good plan to grow extra plants that you won’t mind sharing with the caterpillars.

A quick guide to recognizing the black swallowtail in all its stages:

Eggs: tiny yellow spheres on leaves and stems, turn brown before hatching (actually, it’s turning translucent and the brown is the caterpillar seen through.)

Caterpillars: They grow in 5 instars. Starting out black and spiky, they moult to light green striped with black with yellow spots, with a little spike in each yellow spot. The last three instars are similar, but often with more light green at each and spikes disappearing.

Pupa: The skin splits to form chrysalis (no cocoon like with silk moths), held on to a twig with a thread harness. It can be green or brown. The last generation of the season overwinters as a pupa, for as long as nine months.

Adult males have more yellow, females more blue on the wings, and a wingspan of about 7-8.5 cm.

More about black swallowtails.

Black Swallowtail Caterpillar