Definition of "strong-growing" []

• Tending to spread quickly (adjective)

WordNet. Princeton University. 2010.

• "His face was not to be forgotten, it gave the impression of fire behind bars: A cut, hard face with a tooth-brush moustache, broad cheek-bones, strong-growing dark slightly-grizzled hair, and those steel-bright flickering eyes."
• "The above is a combination of the single cane and bow system, and the horizontal arm training, which I first tried on the Concord from sheer necessity; when the results pleased me so much that I have adopted it with all strong-growing varieties."
• "The Concord, Herbemont, Norton's Virginia, and other strong-growing varieties, I treat in the following manner: When the young shoot has reached the second wire I pinch off its leader."