Should they be pinched back?
I am growing Impatiens for the first time this spring. Most of the plants seem to be doing well, with a few runts in the bunch. They seem to be growing upright, and I want them to be more sprawling when I set them out in pots. Last frost date around here is about May 20th. Should I pinch them back somewhere along the main stem? If so, where should this be done? Check out the pics below.
Also, some of the plants seem to be "top-heavy" with the stem not being sturdy enough, and the plants kind of flop around. I've added more potting soil around the stem trying to give them more support. Any suggestions?
Thank you for your help!