4 Oclock Flowers Zone. You may see different combinations of shades and patterns on a single plant. Plants often self-sow so allow some spent flowers to go to seed.
Sep 01 2014 Four oclock flowers bloom in the evening usually between 4 and 6 oclock once the temperatures have cooled for the day. Hence the name and close up again. Mission San Diego 1991.
The thicker the layer the better the protection.
They were huge tubers and planted in a protected from wind but sunny location they come back every year here in Zone 6-7. 22 x 30 inches. They grow from the original tubers and also reseed. Seedlings were 25 cents ea.