Q.If I plant 4 o\’clock seeds now (sept. 1st–I live in the middle of Indiana) will they come up next spring?
MY 4 o’clocks are going to seed now. Can I plant some of the seeds in another place now and will they come up in the spring?
Certified GKH Gardening Expert
In your area, you will want to plant them a week before the last frost date in early spring. They are not completely hardy in your area, and the seeds will likely be killed off by the cold winter.
This article will give you more information on the plant: https://www.gardeningknowhow.com/ornamental/flowers/four-oclocks/four-oclock-plants.htm