Deliveries arriving at this time of year may contain plant material that is starting to wind down for the season. As the active growing season comes to a close, and dormancy sets in, plants begin to move sugars and carbohydrates from the leaves down into the roots to ensure adequate nourishment through the winter months.
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Silphium trifoliatum

whorled rosinweed add to wishlist

Plant types and subtypes: Perennials

Light Requirements: sun, part-sun

Water Use: medium

Soil Moisture: dry, moist

Soil Description: average, loam, clay, gravel/rock

Height: 3'-5'

Bloom Time: July, August, September

Bloom Color: yellow

Leaf Color: green

Hardiness Zone: 5, 6, 7, 8

Additional Tags: attracts bees, attracts butterflies, drought tolerant, naturalizing

Silphium trifoliatum (whorled rosinweed)
  • Silphium trifoliatum (whorled rosinweed)
  • Silphium trifoliatum (whorled rosinweed)

Pricing & Availability

Description

Silphium trifoliatum

Also known as:

whorled rosinweed

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Scientific Synonyms:

Native Range & Classification

Recorded County Distribution: USDA data

Native Range:
AL, DC, GA, IL, IN, KY, LA, MD, MS, NC, NY, OH, PA, SC, TN, VA, WV

USDA Endangered Status:

  • Endangered: IL

Classification

Kingdom Plantae Plants
Subkingdom Tracheobionta Vascular plants
Superdivision Spermatophyta Seed plants
Division Magnoliophyta Flowering plants
Class Magnoliopsida Dicotyledons
Subclass Asteridae
Order Asterales
Family Asteraceae Aster family
Genus Silphium rosinweed
Species Silphium trifoliatum whorled rosinweed