Silphium asteriscus
TAXONOMY
FamilyAsteraceae
GenusSilphium
Zone4
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Plants of the World OnlineABOUT
Silphium asteriscus, commonly known as Starry Rosinweed, is a perennial plant native to North America. It belongs to the Asteraceae family and is known for its bright yellow, daisy-like flowers. This plant thrives in temperate climates and is often found in prairies and open woodlands. It undergoes a dormancy period during the winter months.
ALSO KNOWN AS
Starry Rosinweed
Silphium asteriscus var. asteriscus
Silphium gatesii f. gatesii
OVERVIEW
VPDCalculate
WaterDry
SoilLoamy
LightDirect Bright (6 Hours)
Temperature20° C
Humidity50%
Dormancy3 Months
pH6.5
Pressure1,013 mbar
DETAILS
Care Instructions
Starry Rosinweed requires bright, direct sunlight for optimal growth. It prefers moderate temperatures and can tolerate a range of humidity levels. Water the plant when the soil is almost completely dry, but avoid waterlogging. Regular pruning helps maintain its shape and encourages new growth.Soil
Silphium asteriscus prefers well-draining loamy soil. Ensure the soil has good drainage to prevent root rot. A mix of garden soil with some sand and organic matter works well for this plant.Fertilizer
Use a balanced fertilizer with an N-P-K ratio of 10-10-10. Fertilize the plant during the growing season, typically in spring and summer, to promote healthy growth and flowering.Repotting
Repot the plant every 2-3 years or when it outgrows its current container. Choose a slightly larger pot with good drainage. Gently remove the plant from its old pot, shake off excess soil, and place it in the new pot with fresh soil.Propagation
Propagate Silphium asteriscus through seeds or division. Sow seeds in early spring or divide the plant in late spring or early fall. Ensure the new divisions have enough roots and replant them in well-prepared soil.Pruning
Prune the plant in late winter or early spring before new growth begins. Remove any dead or damaged stems and shape the plant as desired. Regular pruning encourages bushier growth and more flowers.Toxicity
Silphium asteriscus is not known to be toxic to pets or humans. However, it is always advisable to keep plants out of reach of pets and children to prevent any accidental ingestion.Additional
Starry Rosinweed is a great addition to pollinator gardens as it attracts bees and butterflies. It is also relatively drought-tolerant once established, making it a low-maintenance choice for gardeners.REVOLUTIONIZE YOUR PLANT CARE
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