Question: Planted this 2 years ago and it's only about 5 inches tall (first year it hardly broke the earth.) At this rate, it'll never be...Read More invasive, for sure. I'm in KY, zone 6A. Is this a very slow-growing thing? I have one in full sun and 1 in morning sun, planted same fall (I think), and both the same height now.
Question: Planted this 2 years ago and it's only about 5 inches tall (first year it hardly broke the earth.) At this rate, it'll never be...Read More