Monarch Butterfly

- Milkweed and - Nectar Plants native to Ohio
 Butterflyweed 
(Asclepias tuberosa)

Host plant for monarch caterpillars and excellent nectar plant for adults. Very showy flowers. Prefers dry soils and full sun.

Description:  Sometimes called Orange Milkweed, this perennial has large, flat-topped clusters of yellow-orange or bright-orange flowers and blooms May to September.

Growing Conditions: Needs sunlight, drought tolerant, dry or moist soil

Plant Size:  1-2 ft (30-60 cm)

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 Common Milkweed
(Asclepias syriaca)

Host plant for monarch caterpillars and excellent nectar plant for adults. Fragrant flowers. Thrives in a wide range of soils.

This tall perennial has large balls of pink or purplish flowers that have an attractive odor. The flowers bloom from June to August.

Growing Conditions: Shade intolerant, needs lots of sunlight, moist soil

Plant Size:  Usually 3-5 feet (90-150 cm), sometimes reaching 8 feet (240 cm) in ditches and gardens

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 Purple Milkweed
(Asclepias purpurascens )

The milky juice from this perennial is known to remove warts. The flowers are deep magenta red and bloom May to July.

Growing Conditions: Needs sunlight and dry soil

Plant Size: 2-4 ft (61 to 122 cm)

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 Redring milkweed
(Asclepias variegata)

This perennial has small white flowers with purplish centers crowded into round, terminal clusters that resemble snowballs and blooms May to September.

Growing Conditions: Low water use, dry soil, moderately shade tolerant

Plant Size:  1-3 ft (30- 91 cm)

The stem of this plant has the milky sap typical of most milkweeds. The species name describes the bicolored flowers, which are quite showy in masses. Endangered in CT, NY, PA.

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 Spider Milkweed
(Asclepias viridis)

Monarch caterpillar host plant.

Also known as Green Antelopehorn Milkweed, this perennial has white flowers – mostly one per plant and lacks the “horns” seen on Antelopehorn Milkwed. These milkweeds bloom from May to August.

Growing Conditions: Needs sunlight, cold and heat tolerant, moist soil, low water use

Plant Size: Matures to 4 ft (122 cm) in height

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 Swamp Milkweed 
(Asclepias incarnata )

Monarch caterpillar host plant.

Also known as Pink Milkweed, this perennial has large blossoms composed of small, rose-purple flowers. The deep pink flowers are clustered at the top of a tall, branching stem and bloom June to October.

Growing Conditions: Needs lots of water, shade tolerant, moist to wet soil

Plant Size: 2-5 ft (60-152 cm)

The juice of this wetland milkweed is less milky than that of other species. The genus was named in honor of Aesculapius, Greek god of medicine, undoubtedly because some species have long been used to treat a variety of ailments. The Latin species name means flesh-colored.

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 Whorled milkweed
(Asclepias verticillata)

Monarch caterpillar host plant and exceptional nectar plant. This small milkweed plant is great for landscaping. Dry soils.

This single-stemmed perennial has narrow, linear leaves whorled along the stem. Small, greenish-white flowers occur in flat-topped clusters on the upper part of the stem and bloom May to September.

Growing Conditions: Low water use, moderately shade tolerant, dry soil

Plant Size: 1-3 ft (30- 91 cm)

Because of its toxicity to livestock, this plant is considered a weed in range areas.

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 Aromatic aster
(Symphyotrichum oblongifolium)

Very late blooming aster with fragrant foliage. Stiff stems branch out to create a bush-like appearance. Full sun and dry soils.

This perennial’s rigid stems, usually less than 20 in. tall, are much-branched from the base. The narrow leaves and stems are sparsely covered with short hairs. Pink or lavender-blue flowers are many-petaled and aromatic with a yellow center.

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 Common boneset
(Eupatorium perfoliatum)

Tolerates sandy or clay soils but needs constant moisture. Also attracts bees and an amazing assortment of beneficial wasps.

Tiny, white flowers are arranged in fuzzy clusters top the 3-6 ft. stems of this perennial. Hairy plant with dense flat-topped clusters of many dull-white flowers. Paired leaves, united basally, are perforated by the erect stems.

As suggested by the Latin species name, the stem appears to be growing through the leaf. To early herb doctors, this indicated the plant would be useful in setting bones, so its leaves were wrapped with bandages around splints. The dried leaves have also been used to make a tonic, boneset tea, thought effective in treating colds, coughs, and constipation. Upland Boneset (E. sessilifolium) is somewhat similar, but its leaves are not fused at the base.

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 Marsh blazing star
(Liatris spicata)

Highly adaptable and easy to grow. Attracts many butterflies, bees, and hummingbirds. A great Liatris for wet soils.

Dense gayfeather or marsh blazing star is an erect, slender perennial reaching a height of 3-4 ft. The linear, grass-like leaves are clumped toward the base of the plant, but extend up the stem to the showy flower cluster. A tall spike of rayless, rose-purple (sometimes white), closely set flower heads. The purple, tufted flower heads are arranged in a long, dense spike blooming from the top down.

The species name describes the elongated inflorescence, with its crowded, stalkless flower heads. The protruding styles give the flower an overall feathery appearance, hence its alternate name, Dense Gayfeather.

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 Meadow blazing star
(Liatris ligulistylis)

The ultimate monarch magnet, even compared to other Liatris. Native range stretches east only as far as WI. Medium soils.

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 Rough blazing star
(Liatris aspera)

Another incredibly attractive Liatris for monarchs as well as many other insects. Drought tolerant.

A spike of rounded, rayless, pinkish to lavender (sometimes white) flower heads along stiff erect stems covered with grayish hairs. One of the popular gayfeathers, this perennial has an erect, slightly zig-zag stem, 1-4 ft. tall. The stem is lined with short, narrow, bright-green leaves. Button-like, magenta-purple florets cover the upper 18-32 in. of the plant.

This species is distinguished by its roughness and rounded bracts. The origin of the genus name is unknown; the species name is Latin for rough. Found in eastern North America from the east coast west to Texas and the Dakotas and as far north as southern Ontario, where it is rare and listed by Canadas Committee on the Status of Endangered Wildlife as endangered.

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 Swamp thistle
(Cirsium muticum)

This lovely native thistle attracts numerous butterflies and bees. Host plant for the swamp metalmark butterfly. Wet soils. Biennial.

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