That is a lovely little thing! It appears to be a double cowslip (Primula veris as Carol says). A British native in its single form. I've never seen a double. Cherish it. By that I don't mean mollycoddle it - it is a native of hay meadows and open downland and is not used to rich living. Don't be tempted to feed it or fiddle with it. It looks happy just where it is.

Hi, I realize now that doing a search on potentilla brings up the shrubs and non-weedy perennials too, sorry. So I did a search of weedy potentilla PA and got Potentilla simplex, so it is possible this one is your weed. Though there are few other weedy ones it could possibly be, they will looks similar. My evil nemesis has rounder leaves, but still you can tell it is related to Potentilla simplex. Remy Here is a link that might be useful: Potentilla simplex

Vickie, I love how the little white petunias are weaving through the plant- I may try to do that on purpose next year. What a great pic! Thanks for confirming the id for me. :)) Jean, it is very pretty and the color is very saturated, but a tad more pink than the bright coral my monitor is showing :) Thanks, Cindy :) It is nice to ocassionally know what I'm growing. LOL I grow so many plants in containers, so I'm really trying to partner things with pretty leaves or textures, so when one isn't blooming, the area still looks nice. :)

I water mine mabey every other day and thats because it's in the mid 90's and they get full sun and ,,they are in containers that get hot. on the hottest days I may water them daily only on the hottest dryest days if they start to get droopy from the heat.it hasn't rained it over 2 weeks here. tomatoes don't like lots of water..they like consistant moisture in the soil. I probe the soil down an inch or 2 ,,if it's moist I don't water. this has always worked pretty well for me.