Acanthus Whitewater, sulking?
Hello, I have an Acanthus Whitewater, it’s planted in my tropical border in full sun. I bought it for it’s good height and large showy leaves. Unfortunately it has never grown more than 3 inches in height, nice healthy white leaves ready to unfurl, looks like a small cabbage but it never grows any bigger, I’ve read it can be a bit of a thug in the border but mine is a perpetual wimp. I’ve tried everything from lots of water to neglect, I mulch the border heavily every autumn but it won’t budge, does anyone have any ideas, please! Janette. Lincolnshire Wolds.