Silphium asteriscus

Also Known As

Southern Rosinweed
Starry Rosinweed

Plant type

perennial

size

H: 2'-3'
W: 1'-2'

planting zones

7a-10b

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Silphium asteriscus plant details

Silphium asteriscus is a broadleaf deciduous perennial with green foliage. In fall, spring and summer yellow flowers emerge. Attracts bees and butterflies making it an excellent addition to pollinator gardens. Grows well with sun - mostly shade and regular water. Drought tolerant once established. Does well in average and well-drained soil.

CHARACTERISTICS OF Silphium asteriscus

Plant type: perennial
Plant family: lamiaceae
Foliage: deciduous green
Mature size: 1 FT - 2 FT - wide, 2 FT - 3 FT - tall
Flowers: yellow blooms in fall, spring and summer

GROWING CONDITIONS for Silphium asteriscus

USDA Zones: 7a - 10b
Sun exposure: sun - mostly shade
Watering frequency: regular
Resistant to: deer
Soil needs: average and well-drained

Nursery contributed plant descriptions

2-3" bright yellow suflower-like flowers are held on 3'H branching sturdy stems from late spring to fall. The flowering stalks emerge from a rosette of wide medium green foliage on this fibrous rooted native perennial. Great for butterflies and pollinators. Starry Rosinweed is a common native of our local pineywoods where it can be seen flowering sometimes as early as March. It is quite drought tolerant once established and seems to prefer well-drained soils.