I'm no "gardener" but I like to plant from seed and watch things grow. I am trying to learn a bit more as I go along.
I planted the zinnias in the photo below a couple of months ago, started indoors and then transplanted. My porch garden only gets a few hours of direct sun so maybe that is why they are not further along.
My question is about "pinching back" – and if there are some plants that don't like it. I pinched back #1 and #2 in the photo over a month ago. #1 clearly didn't like that. #2 rallied but is much further behind #3 (the, ah. . "control group").
Is it just simply that a zinnia isn't a "bushy" type plant so pinching back is not appropriate and even detrimental?