Which is the tallest / bushiest impatiens? When I go to the garden section each year, it's a roll of the dice. I'm in Boston and this is a annual. I'm looking for big / tall space filler with color.
You might want to post this on the annuals forum. This forum doesn't get much traffic any more. (btw they aren't annuals, they are tender perennials. I've had some for a couple of years now, made cuttings rooted them and brought them indoors for the winter).