PL. —Asclepias syriacaBotanical illustration — drop image
Peak bloom windowZone 6b · frost-offset weeks
Winter
Not in bloom
Spring
Peak bloom
Summer
Peak bloom
Fall
Not in bloom
Peak bloom
In bloom
Background
Care guide
SunFull sun — 6+ hours daily
WaterLow once established; drought tolerant
SoilAverage, well-draining; spreads by rhizome; pH 5.5–7.0
Spacing18–24 inches
Height36–60 inches
Zone3a – 9a
Native RegionAL, AR, CT, DC, DE, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV
Direct sowFrost hardy