Equisetum hyemale (Rough Horsetail) Houseplant Pawpaws are hardy to -25

Pawpaws are hardy to -25 degrees F and require a geneitcally different Pawpaw in order to pollinate

as well as several species of salamanders

It writes down to -30F

This plant prefers an environment with high humidity

Now fully updated and expanded by the original author

Equisetum hyemale (Rough Horsetail) Houseplant Pawpaws are hardy to -25Plant Description: Hollow stemmed blue green perennial grass like species. Black bands around each sheath. Has a deep rhizome and spreads vigorously, especially in moist conditions. Height: 1 4 ft Watering needs: high, but can tolerate seasonal moisture Sun needs: part sun Soil needs: wet Portland Plant List (Backyard Habitat Certification): Yes Landscape Use and Ecological Function: Rough horsetail thrives in wet conditions with some light shade,