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Asclepias syriaca
Asclepias syriaca
Asclepias syriaca
Asclepias syriaca

Asclepias syriaca

TAXONOMY

FamilyApocynaceae
GenusAsclepias
Zone3

ABOUT

Asclepias syriaca, commonly known as common milkweed, is a perennial plant native to North America. It is well-known for its role in the life cycle of the monarch butterfly, as it serves as a host plant for monarch caterpillars. The plant produces clusters of pink to purplish flowers and has a milky sap that is toxic if ingested. It typically grows in temperate climates and can be found in fields, roadsides, and open areas.

ALSO KNOWN AS

Common Milkweed
Tulvan Florin
Virginia-Silk
Asclepias apocinum
Asclepias capitellata
Asclepias consanguinea
Asclepias cornuti
Asclepias fragrans
Asclepias globosa
Asclepias grandifolia
Asclepias illinoensis
Asclepias intermedia
Asclepias obtusifolia
Asclepias pubescens
Asclepias pubigera
Asclepias serica
Asclepias syriaca f. inermis
Asclepias syriaca f. leucantha
Asclepias syriaca f. polyphylla
Asclepias syriaca f. syriaca
Asclepias syriaca var. syriaca

OVERVIEW

WaterDry
SoilLoamy
LightDirect Bright (6 Hours)
Temperature20° C
Humidity50%
Dormancy4 Months
pH6.5
Pressure1,013 mbar

DETAILS

Care Instructions
Common milkweed thrives in full sun and prefers moderate temperatures. It requires well-drained soil and can tolerate dry conditions. Water the plant sparingly, allowing the soil to dry out between waterings. It can handle average humidity levels and does not require special humidity conditions.
Soil
Asclepias syriaca prefers well-drained loamy soil. It can tolerate a range of soil types but performs best in soil that is not too rich in nutrients. Good drainage is essential to prevent root rot.
Fertilizer
Common milkweed does not require regular fertilization. If desired, a light application of a balanced fertilizer in early spring can support growth, but it is generally not necessary.
Repotting
Repotting is not typically required for common milkweed as it is usually grown outdoors. However, if grown in a container, repotting can be done in early spring when the plant is still dormant. Use a well-draining potting mix and ensure the new container has adequate drainage.
Propagation
Common milkweed can be propagated by seeds or by division. Seeds should be sown in the fall or stratified before spring planting. Division can be done in early spring by separating the rhizomes and replanting them.
Pruning
Pruning is beneficial for common milkweed to control its spread and encourage bushier growth. Cut back the stems in late fall or early spring before new growth begins. Remove any dead or damaged stems throughout the growing season.
Toxicity
All parts of Asclepias syriaca are toxic if ingested due to the presence of cardiac glycosides. It is particularly toxic to pets and livestock, causing symptoms such as vomiting, diarrhea, and in severe cases, heart failure. Handle with care and keep away from children and animals.
Additional
Common milkweed is an important plant for pollinators, especially monarch butterflies. It provides nectar for a variety of insects and serves as a crucial food source for monarch caterpillars. Planting common milkweed can support local ecosystems and contribute to the conservation of monarch butterflies.
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How To Grow Asclepias syriaca | EarthOne