Another possibility for the white one is V. striata. The website I've linked to should ID your Violas easily if you want to verify them. A weed is just a plant that's growing where you don't want it to. I love my Violas but have no problem with rouging out the extras. I wait until after they bloom, though. No sense in letting those pretty blooms go to waste. Jeanne Here is a link that might be useful: Clickable Viola (of PA) Key

Here at least, some say "grown in Canada" and my grocery store ones seem to be Harster (Anthoflores). Did that one have any tag? At first I'd thought they were Optimara. The leaves are wrong for O. Texas and Texas doesn't seem quite as frilled to me. One of the Anthoflores I got is white with a thin red edge and it is ruffled. There is a blue counterpart, which I didn't buy but is shown on Harster's webpage. The foliage on the white/red one isn't the same but maybe it's one of their blue and whites. These come with pink or blue plastic pot covers as on the webpage. (I have Chico also and no leaf match there.) I think the plant does show birthmarking from what I can see in the photo. That will definitely make them go more blue. Note that Harster doesn't really have much in the way of photos. However they do show a few without names and 3 of those were at my supermarket marked "Grown in Canada." I found elsewhere that they grow over 200 varieties of african violets, but don't know if those are all Anthoflores or other kinds. Karin, I know what you mean. I started to wonder about my pH too. Of course he missed the "chomp marks" several of mine have. (Cat). I started to think the AVSA needed a class for catowners with no deductions for hair or a few toothmarks. Diana This post was edited by quimoi on Fri, May 2, 14 at 10:51

Okay - what I was taught were Canada violets (the ones all over my yard) are really Common Blue violets (V. sororia) apparently in two colors: blue, and white with blue striping, both with the outer two petals bearded. The new violet was most like Canada violet (V. canadensis) or pale violet (V. striata) except that I don't remember the flowers growing out of leaf stalks. Maybe they were - it was taller than my Common violets. And I don't remember any markings on it. I don't remember any bearding. No scent. It wasn't V. pallens, Northern violet - I found some of those a month earlier. I will put a cage over it and see if it comes back.

I don't know, but you can try the Violet Forum and see if you get an ID. -Jmcat