Roughstem Rosinweed (Silphium Radula) is a perennial herb in the Asteraceae family with easy care difficulty. It requires moderate watering and full sun light in USDA hardiness zones 6-9. This plant is safe for cats and dogs.
Silphium radula, commonly known as Roughstem Rosinweed, is a tall perennial herb native to the southeastern United States, characterized by its thick white-haired stems and bright yellow daisy-like flowers.

Roughstem Rosinweed
Silphium Radula
Silphium radula, commonly known as Roughstem Rosinweed, is a tall perennial herb native to the southeastern United States, characterized by its thick white-haired stems and bright yellow daisy-like flowers.
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Care Calendar
Monthly care tasks for Roughstem Rosinweed
Expert Care Tips
Pro tips from botanists and plant experts
Watering Tip
Check soil moisture by inserting your finger 1 inch deep. Water only when the top layer feels dry to prevent overwatering.
Humidity Trick
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Growth Hack
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