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09/21/2026The gardens will close at 3:30 pm on 9/23 for Member Night, which has been rescheduled to the rain date of 9/23.Details

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09/21/2026
The gardens will close at 3:30 pm on 9/23 for Member Night, which has been rescheduled to the rain date of 9/23.

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Aristolochia tomentosa

Native Plants

Woolly Dutchman’s-Pipe

3 Photos


Summary

Woolly Dutchman’s-pipe (Isotrema tomentosum) is a unique vine for home gardens with tremendous value to wildlife. Thriving in sun to part shade in average to moist soil, the summer flowers resemble what was traditionally thought of as a Dutchman’s-pipe, blooming among a swathe of fuzzy heart-shaped leaves. Climbing 6-30’ tall, it creates an attractive screen on arbors and porches or scrambles over other plants. Wooly Dutchman’s-pipe will grow along a woodland edge scrambling up trees and shrubs such as common witch-hazel (Hamamelis virginiana), rosebay rhododendron (Rhododendron maximum),and American holly (Ilex opaca), or other sturdy plants. It is a larval host plant for the pipevine swallowtail butterfly. Formerly known as Aristolochia tomentosa. Zones 5-8. 


More Details

  • Plant Type
    perennial-vine 
  • Sun/Shade Conditions
    full-sun-to-partial-shade 
  • Foliage Character
    deciduous 
  • Soil Moisture
    average-to-moist 
  • Flowering Period
    early-summer
  • Soil PH
    adaptable 
  • Flower Color
    purple, red 
  • Summer Foliage Color
    green 
  • Other Scientific Names

    Isotrema tomentosa

     
  • Fall Foliage Color
    green, yellow 
  • Fruit/Seed Color
    brown