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Asclepias tuberosa


(Butterfly Weed) Butterfly Weed produces flat-topped umbels of tiny, star-shaped flowers atop narrow, lance-shaped leaves. Bright orange and nectar-rich, they bloom from summer into fall.

Price: $11.50
Out of stock
Degree of Difficulty
Degree of Difficulty
This plant is easy to grow in a variety of conditions.
Common name
This is the non-scientific name used for a plant. A plant may have several common names, depending on the gardener's location. To further confuse the matter, a common name may be shared by several completely different plants. At Flowers by the Sea, we rely on the scientific name to identify our plants and avoid confusion.
Butterfly Weed
USDA Zones
The U.S. Department of Agriculture plant hardiness zones indicate the temperature zones where a plant is likely to thrive. It is determined by the average annual winter minimum temperature. Actual winter temperatures may be higher or lower than the average.
3 - 9
Size (h/w/fh)
The anticipated mature size of the plant: Height, Width & Flower Height.
This is the average amount of sunlight that a plant needs to thrive. Generally, full sun exposure is 6 or more hours of direct sun daily while partial shade is less than 4 hours of sun or dappled shade all day. Plants may tolerate more sunlight in cooler climates and need afternoon shade in extremely hot climates.
Full sun
Soil type
This is the kind of soil that a plant needs to thrive. Most plants require a well-drained soil that allows the water to soak into the soil without becoming soggy. Sandy and clay soils can be improved by digging in compost to improve drainage.
Well drained
Water needs
Plants have specific water requirements. Water loving means the plant needs regular watering to keep the soil moist. Average generally indicates applying 1 inch of water per week, or watering when the soil is dry to a depth of 3 to 4 inches. One inch of water is equal to 5 gallons per square yard of soil surface.
Drought resistant
Pot size
This is the size of the pot your plant will arrive in. All will be well rooted & branched and ready to grow when planted. Our 3 1/2 inch pots have a volume of 1.0 pints or 473 ml.
3 1/2 inch deep pot
Container plant?
"Yes" indicates that this plant can be successfully grown as a container plant.
Hummingbird plant?
Hummingbirds have been observed regularly feeding from this plant's flowers.
  • Asclepias tuberosa
  • Asclepias tuberosa
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Ratings & Reviews

(Butterfly Weed)  Butterfly Weed produces flat-topped umbels of tiny, star-shaped flowers atop narrow, lance-shaped leaves. Bright orange and nectar-rich, they bloom from summer into fall.

This is a drought-resistant member of the Milkweed genus (Asclepias spp.), which is particularly important to the endangered Monarch butterfly. Monarchs will only lay their eggs on Milkweeds. The roughness of the species’ fuzzy foliage makes it easy for eggs and chrysalises to connect. Monarch caterpillars consume powerful chemicals in the leaves which protect them as babies and adults against predators for whom the chemicals are toxic.

Butterfly Weed is a heat- and cold-tolerant plant that forms upright clumps reaching up to 36 inches tall when in bloom and spreading 36 inches wide. Although slow to emerge in spring, it is a reliable perennial. Planting bulb flowers in the same area can help to mark its location.

Milkweeds are American natives. Aside from butterfly gardens, they are ideal for prairie and dry landscapes, but generally grow well in any well drained soil.

In spring 2013, The New York Times reported a precipitous decline in the Monarch butterfly migration due to causes including North America’s rapidly decreasing supply of Milkweed growing wild in agricultural fields. According to The Times , the increasing use of seed genetically modified to withstand herbicides has eliminated at least 120 million acres of Monarch habitat.

Backyard gardeners can help butterflies, including Monarchs, by planting nectar and host plants.