Assertion: russian comfrey | /r/HasProperty | symphytum x uplandicum
Facets:
Source sentences:
text: The “Bocking 14” cultivar of Russian Comfrey (Symphytum x uplandicum) has gained popularity in recent years, as this strain of the plant is sterile, and is thus unable spread by seed, vastly reducing the risk for this comfrey to spread out of control once planted.
text: Plant Russian Comfrey (Symphytum x uplandicum) about 3 feet apart in each direction.
text: A hybrid variety exists as well between S. offinale and S. asperum, known as Russian comfrey (Symphytum x uplandicum).
text: Recent research on Bocking 14 Russian Comfrey (Symphytum x uplandicum) shows it to be a fast growing cultivar with large leaves that when placed on the soil can provide many nutrients that plants need.
text: Comfrey has long been recognised by both organic gardeners and herbalists for it’s great usefulness and versatility, of particular interest is the ‘Bocking 14’ cultivar of Russian Comfrey (Symphytum x uplandicum).
text: Comfrey has long been recognised by both organic gardeners and herbalists for its great usefulness and versatility; of particular interest is the "Bocking 14" cultivar of Russian Comfrey (Symphytum x uplandicum).
text: Bocking 14 cultivar of Russian Comfrey (Symphytum x uplandicum).
text: Russian comfrey Russian comfrey (Symphytum x uplandicum).
text: Russian comfrey (Symphytum x uplandicum) also called the Bocking 14 cultivar.
text: The best comfrey for your garden is Russian comfrey, Symphytum x uplandicum.
text: Russian comfrey (Symphytum x uplandicum) is sterile so it will not reproduce through seeds.
text: Russian comfrey (Symphytum x uplandicum) is the most popular type of comfrey for the grower, it’s a hybrid of Symphytum officinale (common comfrey) and Symphytum asperum (rough comfrey).
text: However, Russian comfrey (Symphytum x uplandicum), contains higher levels of the diester, which, is known to have a greater toxicity.  
text: Some species of comfrey, like Russian comfrey (Symphytum x uplandicum), contain higher concentrations of PAs.