Friday, September 29, 2006

Halt! Drop your weapons!

Imagine the shock to discover that one of America's Most Invasive was mounting sneak attacks throughout the garden! Nice. Not.

Asiatic dayflower (Commelina communis) has a sweetly demure true-blue blossom and a frighteningly aggressive habit. It had blanketed a portion of the back property line, insinuated itself into a phlox growing next to the house, slipped around behind the hollies, and generally eased into any available patch of bare ground.

When a few plants popped up at the end of last summer, I recognized them as members of the spiderwort family but figured that just as with their purple wildflower cousin (Tradescantia virginiana), peaceful co-existence was possible. What I didn't know, however, was that asiatic dayflower's promiscuous propagation--by seeds, roots, or just a length of broken stem setting in the ground where it fell--meant that it was not good at keeping to itself. Should it be a surprise that asiatic dayflower is used to extract heavy metals from contaminated soils?

So next year, I will have to be scrupulous about eradicating this intruder.

1 comment:

diana said...

Begone vile intruder!