I grew them in five-gallon buckets last year and was pleased with the results. They got about 3 feet tall and I did need to stake them. They bloom on the growing tips so it's better to pinch them early in their development than to prune later on. You don't want to cut off all the flower buds just when they're about to put on a show. Edie

Yes I put them into one garden last year, a few seeds. This year, there is not a spot in that garden that doesn't have a four o'clock plant and they have spread. A man stopped in a truck last year and said they were so beautiful and wanted to know what they were. I would have given him half of them if I'd known. Every wee flower has a seed in it and there are thousands of flowers. The seeds look like little hand grenades. Yes they have spread a long way too. Thousands around where the original plants were but also a plant here and there a long way from where I planted them. They are very pretty but they are called four o'clocks because the flowers don't open until four o'clock in the afternoon. Must say I haven't noticed the smell, must check this year once they start flowering.

Now my containerized 4:00's have about bloomed out. They have set seeds, which I am saving. The plants in the ground started blooming much later. They are actually more lush than the ones in containers. I am saving seeds by collecting individually from each color plant, into envelopes labeled with those colors. They are open pollinates, so who knows what I will get, but saving the colors separately seems reasonable; My photo doesn't do them justice. They grew really nice.

I know it's a little late, but evidently, a lot of May posts didn't get any replies. Those look like army worms from what I can see.